Cơ cấu dân số là gì?

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Một số câu hỏi khác cùng bài thi.

• Ngày dân số thế giới là ngày :

• Một trong những mục tiêu của chính sách dân số nước ta là gì?

• Cơ cấu dân số là:

• Cơ cấu dân số là gì?

• Tình hình dân số ở nước ta hiện nay là:

• Quy mô dân số là gì?

• Một trong những mục tiêu của chính sách dân số nước ta là gì?

• Một trong những phương hướng cơ bản để phát triển dân số ở nước ta:

• Dân số tăng nhanh là một trong những nguyên nhân dẫn đến tình trạng :

   

• Đảng và Nhà nước ta coi chính sách dân số là:

Một số câu hỏi khác có thể bạn quan tâm.

• Cho x mol hỗn hợp kim loại Al, Fe (có tỉ lệ mol 1:1) tan hết trong dung dịch chứa Y mol HNO3 ( Tỷ lệ x:y = 3:17). Sau khi kim loại tan hết, thu được sản phẩm khử Y duy nhất và dung dịch Z chỉ chứa muối nitrat. Cho AgNO3 đến dư vào Z, thu được m gram rắn. Giá trị của m là :         

• Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blank from 31 to 35:

  Education is more important today than ever before. It helps people acquire the skills they need for such everyday (31) ________ as reading a newspaper or managing their money. It also gives them the specialized training they may need to prepare for a job or career. For example, a person must meet certain educational requirements and obtain a license or certificate before he can practice law or medicine. Many fields, like computer operation or police work, (32) ________ satisfactory completion of special training courses. Education is also important (33) ________ it helps people get more out of life. It increases their knowledge and understanding of the world. It helps them acquire the skills that make life more interesting and enjoyable, such as the skills needed to participate in a sport, paint a picture, or play a musical instrument. Such education becomes (34) ________ important as people gain more and more leisure time. Education also helps people adjust to change. This habit has become necessary because social changes today take place with increasing speed and affect the lives of more and more people. Education can help a person understand these changes and provide him (35) ________ the skills for adjusting to them. 

  Question 32:

• Cho 5,2 gam hỗn hợp gồm Al, Mg và Zn tác dụng vừa đủ với dung dịch H2SO4 10% thu được dung dịch Y và 3,36 lít khí H2 (đkc). Khối lượng của dung dịch Y là:         

• Cho kim loại M tác dụng với Cl2 thu được muối X. Mặt khác, cho kim loại M tác dụng với dung dịch HCl thu được muối Y. Cho muối Y tác dụng với Cl2 lại thu được muối X. Vậy M có thể ứng với kim loại nào sau đây:  

• Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blank from 31 to 35:

  Education is more important today than ever before. It helps people acquire the skills they need for such everyday (31) ________ as reading a newspaper or managing their money. It also gives them the specialized training they may need to prepare for a job or career. For example, a person must meet certain educational requirements and obtain a license or certificate before he can practice law or medicine. Many fields, like computer operation or police work, (32) ________ satisfactory completion of special training courses. Education is also important (33) ________ it helps people get more out of life. It increases their knowledge and understanding of the world. It helps them acquire the skills that make life more interesting and enjoyable, such as the skills needed to participate in a sport, paint a picture, or play a musical instrument. Such education becomes (34) ________ important as people gain more and more leisure time. Education also helps people adjust to change. This habit has become necessary because social changes today take place with increasing speed and affect the lives of more and more people. Education can help a person understand these changes and provide him (35) ________ the skills for adjusting to them. 

  Question 33:

• Dung dịch CuSO4 loãng được dùng làm thuốc diệt nấm cho hoa. Để điều chế 800 gam dung dịch CuSO4 5%, người ta hòa tan CuSO4.5H2O vào nước. Khối lượng CuSO4.5H2O cần dùng là ?  

• Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blank from 31 to 35:

  Education is more important today than ever before. It helps people acquire the skills they need for such everyday (31) ________ as reading a newspaper or managing their money. It also gives them the specialized training they may need to prepare for a job or career. For example, a person must meet certain educational requirements and obtain a license or certificate before he can practice law or medicine. Many fields, like computer operation or police work, (32) ________ satisfactory completion of special training courses. Education is also important (33) ________ it helps people get more out of life. It increases their knowledge and understanding of the world. It helps them acquire the skills that make life more interesting and enjoyable, such as the skills needed to participate in a sport, paint a picture, or play a musical instrument. Such education becomes (34) ________ important as people gain more and more leisure time. Education also helps people adjust to change. This habit has become necessary because social changes today take place with increasing speed and affect the lives of more and more people. Education can help a person understand these changes and provide him (35) ________ the skills for adjusting to them. 

  Question 31:

• hợp Y gồm 2 kim loại và dung dịch Z. Cho NaOH dư vào dung dịch Z thu được 2 kết tủa gồm 2 hidroxit kim loại.Dung dịch Z chứa          

• Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blank from 31 to 35:

  Education is more important today than ever before. It helps people acquire the skills they need for such everyday (31) ________ as reading a newspaper or managing their money. It also gives them the specialized training they may need to prepare for a job or career. For example, a person must meet certain educational requirements and obtain a license or certificate before he can practice law or medicine. Many fields, like computer operation or police work, (32) ________ satisfactory completion of special training courses. Education is also important (33) ________ it helps people get more out of life. It increases their knowledge and understanding of the world. It helps them acquire the skills that make life more interesting and enjoyable, such as the skills needed to participate in a sport, paint a picture, or play a musical instrument. Such education becomes (34) ________ important as people gain more and more leisure time. Education also helps people adjust to change. This habit has become necessary because social changes today take place with increasing speed and affect the lives of more and more people. Education can help a person understand these changes and provide him (35) ________ the skills for adjusting to them. 

  Question 34:
  

• Cho m gam hỗn hợp bột X gồm ba kim loại Zn, Cr, Sn có số mol bằng nhau tác dụng hết với lượng dư dung dịch HCl loãng, nóng thu được dung dịch Y và khí H2. Cô cạn dung dịch Y thu được 8,98 gam muối khan. Nếu cho m gam hỗn hợp X tác dụng hoàn toàn với O2 (dư) để tạo 3 hỗn hợp 3 oxit thì thể tích khí O2 (đktc) phản ứng là