Một mạch dao động LC có điện trở thuần bằng không, tụ điện có điện dung 0,125µF và cuộn cảm có độ tự cảm 50 µH. Cường độ dòng điện cực đại trong mạch 2 mA. Hiệu điện thế cực đại giữa hai bản tụ điện là

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions: 

Although people drive in all countries, the rules can be quite different between nations and areas. For this reason, you should always learn the laws before you decide to drive in a foreign country. If you are not careful, you can get into trouble since the rules might be very different from what you are used to. For example, you can find some big differences in laws related to the minimum driving age, the appropriate side of the road to drive on, and mobile phone use while driving. In the U.S., people who live in Alaska may obtain a learner’s permit (legal permission to drive while being supervised) at the age of fourteen. This is quite different from the driving laws of Niger, where a person must be at least twenty-three years old to drive. If you are inquisitive to know the minimum driving age in most countries, the answer is eighteen. It may also surprise you to learn that not every country allows its citizens to drive, although most of them do. For example, women are not allowed to drive in Saudi Arabia no matter how old they are. Instead, they must have a male family member or hired male driver to travel by car. Driving on the right or left side of the road also varies. For instance, in Great Britain, Cyprus, Australia, India, and Malaysia people drive on the left. However, in the U.S., Mexico, France, and Canada people are required to drive on the right. As a matter of fact, one country can have different driving rules for different areas. People in Hong Kong drive on the left, while drivers in other parts of China use the right side of the road. Other driving laws that are different between countries include those related to using mobile phones. In Japan, using any kind of mobile phone device is illegal, even if you do not need to hold the phone with your hands. However, in Argentina and Australia, drivers are allowed to talk on their mobile phones as long as they do not use their hands.  You might also find it interesting to learn that some countries have very unusual laws. For example, in the country of Cyprus, it is against the law to eat or drink anything while driving. Even more interesting is that in Germany, there is a famous road called the Autobahn, where certain parts have no speed limit at all!  

Question: It is important to learn the laws before driving in a foreign country because_______.         

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions: 

Although people drive in all countries, the rules can be quite different between nations and areas. For this reason, you should always learn the laws before you decide to drive in a foreign country. If you are not careful, you can get into trouble since the rules might be very different from what you are used to. For example, you can find some big differences in laws related to the minimum driving age, the appropriate side of the road to drive on, and mobile phone use while driving. In the U.S., people who live in Alaska may obtain a learner’s permit (legal permission to drive while being supervised) at the age of fourteen. This is quite different from the driving laws of Niger, where a person must be at least twenty-three years old to drive. If you are inquisitive to know the minimum driving age in most countries, the answer is eighteen. It may also surprise you to learn that not every country allows its citizens to drive, although most of them do. For example, women are not allowed to drive in Saudi Arabia no matter how old they are. Instead, they must have a male family member or hired male driver to travel by car. Driving on the right or left side of the road also varies. For instance, in Great Britain, Cyprus, Australia, India, and Malaysia people drive on the left. However, in the U.S., Mexico, France, and Canada people are required to drive on the right. As a matter of fact, one country can have different driving rules for different areas. People in Hong Kong drive on the left, while drivers in other parts of China use the right side of the road. Other driving laws that are different between countries include those related to using mobile phones. In Japan, using any kind of mobile phone device is illegal, even if you do not need to hold the phone with your hands. However, in Argentina and Australia, drivers are allowed to talk on their mobile phones as long as they do not use their hands.  You might also find it interesting to learn that some countries have very unusual laws. For example, in the country of Cyprus, it is against the law to eat or drink anything while driving. Even more interesting is that in Germany, there is a famous road called the Autobahn, where certain parts have no speed limit at all!

Question: The word “inquisitive” in paragraph 2 can be best replaced by _______.             

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions that follow.

There have been many famous detectives in literature. But one of the first – and certainly the most famous – is Sherlock Holmes. Holmes was created by the British writer Sis Arthur Conan Doyle in the late nineteenth century. Sherlock Holmes made his first appearance in the work A study in Scarlet, which was published in 1887. Holmes instantly became a popular literary figure with the general populace, who demanded that Doyle write more stories involving him. Doyle complied and eventually wound up writing fifty-six short stories and four novels that featured Holmes. While he took a break of several years from creating stories about Holmes, Doyle countinued to write Holmes stories until 1927. Among the most famous of all the works featuring Holmes are The Hound of the Baskervilles, The Blue Carbuncle, and A Scandal in Bohemia. One of the reasons that Sherlock Holmes was popular concerns the method he employs to solve his case: logic. Together with his partner, Dr. Watson, Holmes uses his powers of observation to detect clues that can help him solve the cases he accepts. Holmes has an incredibly sharp mind that enables him to determine who the guilty party or what the problem is. Holmes also is a master of disguise, which he prove many times, and he is skilled at boxing as well as sword fighting. While Holmes often solves cases that are unrelated to one another, he has a nemesis with whom he comes into both direct and indirect conflict in several stories. That person is Professor Moriarty, the leader of a crime ring in London. In one of the stories, The Final Problem, Holmes and Moriarty fight one another and fall to their deaths by plunging down a steep cliff near a waterfall. When he wrote that story, Doyle had tired of Holmes and wanted to kill off the character. He then refrained from writing about Holmes for many years, but public demand for more stories induced him to bring Holmes back from the dead and to continue writing detective stories.

Question: Why does the author mention The Hound of the Baskervilles?         

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions that follow.

There have been many famous detectives in literature. But one of the first – and certainly the most famous – is Sherlock Holmes. Holmes was created by the British writer Sis Arthur Conan Doyle in the late nineteenth century. Sherlock Holmes made his first appearance in the work A study in Scarlet, which was published in 1887. Holmes instantly became a popular literary figure with the general populace, who demanded that Doyle write more stories involving him. Doyle complied and eventually wound up writing fifty-six short stories and four novels that featured Holmes. While he took a break of several years from creating stories about Holmes, Doyle countinued to write Holmes stories until 1927. Among the most famous of all the works featuring Holmes are The Hound of the Baskervilles, The Blue Carbuncle, and A Scandal in Bohemia. One of the reasons that Sherlock Holmes was popular concerns the method he employs to solve his case: logic. Together with his partner, Dr. Watson, Holmes uses his powers of observation to detect clues that can help him solve the cases he accepts. Holmes has an incredibly sharp mind that enables him to determine who the guilty party or what the problem is. Holmes also is a master of disguise, which he prove many times, and he is skilled at boxing as well as sword fighting. While Holmes often solves cases that are unrelated to one another, he has a nemesis with whom he comes into both direct and indirect conflict in several stories. That person is Professor Moriarty, the leader of a crime ring in London. In one of the stories, The Final Problem, Holmes and Moriarty fight one another and fall to their deaths by plunging down a steep cliff near a waterfall. When he wrote that story, Doyle had tired of Holmes and wanted to kill off the character. He then refrained from writing about Holmes for many years, but public demand for more stories induced him to bring Holmes back from the dead and to continue writing detective stories.

Question: What does the author say about Sis Arthur Conan Doyle?             

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions that follow.

There have been many famous detectives in literature. But one of the first – and certainly the most famous – is Sherlock Holmes. Holmes was created by the British writer Sis Arthur Conan Doyle in the late nineteenth century. Sherlock Holmes made his first appearance in the work A study in Scarlet, which was published in 1887. Holmes instantly became a popular literary figure with the general populace, who demanded that Doyle write more stories involving him. Doyle complied and eventually wound up writing fifty-six short stories and four novels that featured Holmes. While he took a break of several years from creating stories about Holmes, Doyle countinued to write Holmes stories until 1927. Among the most famous of all the works featuring Holmes are The Hound of the Baskervilles, The Blue Carbuncle, and A Scandal in Bohemia. One of the reasons that Sherlock Holmes was popular concerns the method he employs to solve his case: logic. Together with his partner, Dr. Watson, Holmes uses his powers of observation to detect clues that can help him solve the cases he accepts. Holmes has an incredibly sharp mind that enables him to determine who the guilty party or what the problem is. Holmes also is a master of disguise, which he prove many times, and he is skilled at boxing as well as sword fighting. While Holmes often solves cases that are unrelated to one another, he has a nemesis with whom he comes into both direct and indirect conflict in several stories. That person is Professor Moriarty, the leader of a crime ring in London. In one of the stories, The Final Problem, Holmes and Moriarty fight one another and fall to their deaths by plunging down a steep cliff near a waterfall. When he wrote that story, Doyle had tired of Holmes and wanted to kill off the character. He then refrained from writing about Holmes for many years, but public demand for more stories induced him to bring Holmes back from the dead and to continue writing detective stories.

Question: What is the best title for the passage?         

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions: 

Although people drive in all countries, the rules can be quite different between nations and areas. For this reason, you should always learn the laws before you decide to drive in a foreign country. If you are not careful, you can get into trouble since the rules might be very different from what you are used to. For example, you can find some big differences in laws related to the minimum driving age, the appropriate side of the road to drive on, and mobile phone use while driving. In the U.S., people who live in Alaska may obtain a learner’s permit (legal permission to drive while being supervised) at the age of fourteen. This is quite different from the driving laws of Niger, where a person must be at least twenty-three years old to drive. If you are inquisitive to know the minimum driving age in most countries, the answer is eighteen. It may also surprise you to learn that not every country allows its citizens to drive, although most of them do. For example, women are not allowed to drive in Saudi Arabia no matter how old they are. Instead, they must have a male family member or hired male driver to travel by car. Driving on the right or left side of the road also varies. For instance, in Great Britain, Cyprus, Australia, India, and Malaysia people drive on the left. However, in the U.S., Mexico, France, and Canada people are required to drive on the right. As a matter of fact, one country can have different driving rules for different areas. People in Hong Kong drive on the left, while drivers in other parts of China use the right side of the road. Other driving laws that are different between countries include those related to using mobile phones. In Japan, using any kind of mobile phone device is illegal, even if you do not need to hold the phone with your hands. However, in Argentina and Australia, drivers are allowed to talk on their mobile phones as long as they do not use their hands.  You might also find it interesting to learn that some countries have very unusual laws. For example, in the country of Cyprus, it is against the law to eat or drink anything while driving. Even more interesting is that in Germany, there is a famous road called the Autobahn, where certain parts have no speed limit at all!  

Question: The word “those” in paragraph 4 refers to_______.         

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions: 

Although people drive in all countries, the rules can be quite different between nations and areas. For this reason, you should always learn the laws before you decide to drive in a foreign country. If you are not careful, you can get into trouble since the rules might be very different from what you are used to. For example, you can find some big differences in laws related to the minimum driving age, the appropriate side of the road to drive on, and mobile phone use while driving. In the U.S., people who live in Alaska may obtain a learner’s permit (legal permission to drive while being supervised) at the age of fourteen. This is quite different from the driving laws of Niger, where a person must be at least twenty-three years old to drive. If you are inquisitive to know the minimum driving age in most countries, the answer is eighteen. It may also surprise you to learn that not every country allows its citizens to drive, although most of them do. For example, women are not allowed to drive in Saudi Arabia no matter how old they are. Instead, they must have a male family member or hired male driver to travel by car. Driving on the right or left side of the road also varies. For instance, in Great Britain, Cyprus, Australia, India, and Malaysia people drive on the left. However, in the U.S., Mexico, France, and Canada people are required to drive on the right. As a matter of fact, one country can have different driving rules for different areas. People in Hong Kong drive on the left, while drivers in other parts of China use the right side of the road. Other driving laws that are different between countries include those related to using mobile phones. In Japan, using any kind of mobile phone device is illegal, even if you do not need to hold the phone with your hands. However, in Argentina and Australia, drivers are allowed to talk on their mobile phones as long as they do not use their hands.  You might also find it interesting to learn that some countries have very unusual laws. For example, in the country of Cyprus, it is against the law to eat or drink anything while driving. Even more interesting is that in Germany, there is a famous road called the Autobahn, where certain parts have no speed limit at all!  

Question: What is the main idea of the passage?         

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions that follow.

There have been many famous detectives in literature. But one of the first – and certainly the most famous – is Sherlock Holmes. Holmes was created by the British writer Sis Arthur Conan Doyle in the late nineteenth century. Sherlock Holmes made his first appearance in the work A study in Scarlet, which was published in 1887. Holmes instantly became a popular literary figure with the general populace, who demanded that Doyle write more stories involving him. Doyle complied and eventually wound up writing fifty-six short stories and four novels that featured Holmes. While he took a break of several years from creating stories about Holmes, Doyle countinued to write Holmes stories until 1927. Among the most famous of all the works featuring Holmes are The Hound of the Baskervilles, The Blue Carbuncle, and A Scandal in Bohemia. One of the reasons that Sherlock Holmes was popular concerns the method he employs to solve his case: logic. Together with his partner, Dr. Watson, Holmes uses his powers of observation to detect clues that can help him solve the cases he accepts. Holmes has an incredibly sharp mind that enables him to determine who the guilty party or what the problem is. Holmes also is a master of disguise, which he prove many times, and he is skilled at boxing as well as sword fighting. While Holmes often solves cases that are unrelated to one another, he has a nemesis with whom he comes into both direct and indirect conflict in several stories. That person is Professor Moriarty, the leader of a crime ring in London. In one of the stories, The Final Problem, Holmes and Moriarty fight one another and fall to their deaths by plunging down a steep cliff near a waterfall. When he wrote that story, Doyle had tired of Holmes and wanted to kill off the character. He then refrained from writing about Holmes for many years, but public demand for more stories induced him to bring Holmes back from the dead and to continue writing detective stories.

Question: Why did Doyle kill Sherlock Holmes in one of his stories?         

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions that follow.

There have been many famous detectives in literature. But one of the first – and certainly the most famous – is Sherlock Holmes. Holmes was created by the British writer Sis Arthur Conan Doyle in the late nineteenth century. Sherlock Holmes made his first appearance in the work A study in Scarlet, which was published in 1887. Holmes instantly became a popular literary figure with the general populace, who demanded that Doyle write more stories involving him. Doyle complied and eventually wound up writing fifty-six short stories and four novels that featured Holmes. While he took a break of several years from creating stories about Holmes, Doyle countinued to write Holmes stories until 1927. Among the most famous of all the works featuring Holmes are The Hound of the Baskervilles, The Blue Carbuncle, and A Scandal in Bohemia. One of the reasons that Sherlock Holmes was popular concerns the method he employs to solve his case: logic. Together with his partner, Dr. Watson, Holmes uses his powers of observation to detect clues that can help him solve the cases he accepts. Holmes has an incredibly sharp mind that enables him to determine who the guilty party or what the problem is. Holmes also is a master of disguise, which he prove many times, and he is skilled at boxing as well as sword fighting. While Holmes often solves cases that are unrelated to one another, he has a nemesis with whom he comes into both direct and indirect conflict in several stories. That person is Professor Moriarty, the leader of a crime ring in London. In one of the stories, The Final Problem, Holmes and Moriarty fight one another and fall to their deaths by plunging down a steep cliff near a waterfall. When he wrote that story, Doyle had tired of Holmes and wanted to kill off the character. He then refrained from writing about Holmes for many years, but public demand for more stories induced him to bring Holmes back from the dead and to continue writing detective stories.

Question: What does the author imply about Professor Moriarty?         

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions that follow.

There have been many famous detectives in literature. But one of the first – and certainly the most famous – is Sherlock Holmes. Holmes was created by the British writer Sis Arthur Conan Doyle in the late nineteenth century. Sherlock Holmes made his first appearance in the work A study in Scarlet, which was published in 1887. Holmes instantly became a popular literary figure with the general populace, who demanded that Doyle write more stories involving him. Doyle complied and eventually wound up writing fifty-six short stories and four novels that featured Holmes. While he took a break of several years from creating stories about Holmes, Doyle countinued to write Holmes stories until 1927. Among the most famous of all the works featuring Holmes are The Hound of the Baskervilles, The Blue Carbuncle, and A Scandal in Bohemia. One of the reasons that Sherlock Holmes was popular concerns the method he employs to solve his case: logic. Together with his partner, Dr. Watson, Holmes uses his powers of observation to detect clues that can help him solve the cases he accepts. Holmes has an incredibly sharp mind that enables him to determine who the guilty party or what the problem is. Holmes also is a master of disguise, which he prove many times, and he is skilled at boxing as well as sword fighting. While Holmes often solves cases that are unrelated to one another, he has a nemesis with whom he comes into both direct and indirect conflict in several stories. That person is Professor Moriarty, the leader of a crime ring in London. In one of the stories, The Final Problem, Holmes and Moriarty fight one another and fall to their deaths by plunging down a steep cliff near a waterfall. When he wrote that story, Doyle had tired of Holmes and wanted to kill off the character. He then refrained from writing about Holmes for many years, but public demand for more stories induced him to bring Holmes back from the dead and to continue writing detective stories.

Question: The word “refrained from” in pharagraph 4 is closest in meaning to______.