[填空题]Part 2
Questions 9-18
·Read the following passage and answer questions 9-18.
1. The American baby boom after the war made unconvincing advice to the poor countries that they restrain their birthrates. However, there has hardly been a year since 1957 in which birthrates have not fallen in the United States and other rich countries, and in t976 the fall was especially sharp. Both East Germany and West Germany have fewer births than they have deaths, and the United States is only temporarily able to avoid this condition because the children of the baby boom are now an exceptionally large group of married couples.
2. It is true the American don’t typically plan their birth to set an example tbr developing nations. They are more affected by women’s liberation: once women see interesting and well-paid job and careers available, they are less willing to provide free labor for child raising. From costing nothing, children suddenly come to s

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