Saudi Arabia is mentioned in the passage because
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Saudi Arabia is mentioned in the passage because it shows that____.
A. the most important factor influencing birth rate is the economy
B. factors other than the economy influence birth rate
C. women who have a high income usually have few children
D. the birth rate depends on per capita income
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答案：B
本题的问题是：文中提到沙特阿拉伯的例子说明了什么？ 由第三段开头可知“However , the economy is not the only important factor that influences birth rate.”下面将要介绍其他的因素，之后以沙特阿拉伯为例。故正确答案为B。经济以外影响出生率的因素。