题目内容

关于相对数,下列哪一个说法是错误的( )

A. 相对数是两个有联系的指标之比
B. 常用相对数包括相对比、率与构成比
C. 计算相对数时要求分母要足够大
D. 率与构成比虽然意义不同,但性质相近,经常可以混用
E. 计算相对数时分母不宜过小

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[音频]Use your notes to complete the summary of the lecture below. Then complete your summary with your partner's.Names are sometimes called a cultural ____1_________.In the United States, parents choose a first name, also known as a(n) ____2___ name, in a variety of ways. One way is to use the name of a(n) ____3____ or _____4______ member who has recently died. Another is to pass a name from one ____5____ to the next. Some parents choose a name that sounds __6_____ to them to help their child do well in the business world. Most parents, though, choose a name because ______7_____.The four categories of English-language surnames are: place names, ____8_______ , added names, and ___9_____ names. The most common occupation name is ____10______.

What is the main reason given for the widespread use of English?[音频]

A. English is the most beautiful language in the world.
B. People need a common language in the world.
C. Many people use the Internet.

Which reason is not given to argue that English is a global language?[音频]

A. English is the main language used in many international situations.
B. English is the official language in many countries.
C. English is the only language used in international meetings.

According to the lecture, what is one reason why English should be considered a global language?[音频]

A. Everyone who speaks English uses it at home.
B. An estimated one billion people study English every year.
C. In the countries where English is the official language, most of the people speak it.

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