Ba dạng đồng phân (ortho, meta, para) có ở

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Câu tục ngữ: “Có công mài sắt, có ngày nên kim” thuộc nội dung:
  

• Bò phân bố chủ yếu ở

• Read the passage and choose the correct answer:
  Las Vegas, Nevada, is the most famous city for gambling in the United States. Some people say that Las Vegas is a mispronunciation of 'lost wages'. The casinos and hotels have so many neon lights that people call this city in the desert 'The City of Lights'.
  Each of the big hotels in Las Vegas is special. Going into one is like entering another world. One hotel is like ancient Egypt. Another is like a tropical island. Still another is like New York City. These hotels have shows with famous entertainers. Everything looks expensive. But the rooms cost half the price of the rooms in other places. And the restaurants have all-you-can-eat meals for very little money. That's because the hotels make their money from the gambling casinos.
  Las Vegas started in 1905 as a small train stop. There. were only a few buildings in the middle of the desert. In 1946. a famous gangster named Bugsy Seigel built the first casino. He was murdered in 1947. "Iris made him and Las Vegas more famous! In the early 1950s, tourist went to Las Vegas not only to gamble. They went to watch atomic bomb tests in the desert outside the city. In those days, people didn't know it was dangerous. They thought it was exciting.
  Las Vegas is also famous for its many wedding chapels. Like all of Las Vegas, they are open twenty-four hours a day. Getting married is easy. A couple just pays a few dollars for a license, and they can get married immediately. They don't have to wait. Many famous movie stars were married in Las Vegas.
  It is interesting that Las Vegas has more churches for its population anywhere else in the United States. That's not counting welding chapels. Another interesting fact is that tourists have a greater chance of having a heart attack in Las Vegas than in any other American city.
  Question. Originally, Las Vegas . . . . . . . . . . . . . . . . . . .
  

• Xét phép lai:. Biết 1 gen qui định 1 tính trạng. Số kiển gen và kiểu hình có thể có:  

• Sản xuất của cải vật chất là cơ sở tồn tại của xã hội là
  
• Hoàn chỉnh nội dung kiến thức sau đây: “Nhân dân ta ……Tiếng Việt vẫn…. Các phong tục, tập quán như ăn trầu, nhuộm răng đen, tôn trọng phụ nữ vẫn được duy trì”.
  

• I like him ______ for his shyness.

• Nghiệm âm lớn nhất của phương trình là:                                 

• Lợn được nuôi chủ yếu ở

• Cho m gam hỗn hợp gồm A₂CO₃ và BCO₃ tác dụng vừa đủ với dung dịch HCl thấy sinh ra 4,48 lít khí (đktc) và dung dịch X. Cô cạn dung dịch X thu được 22,8 gam chất rắn. Giá trị của m là ?