单选题：The main idea of the passage is about __________.

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题目内容：
The main idea of the passage is about __________. A．women's role in American families
B．advantages of fast food for Americans
C．modem lifestyles and diet in America
D．shift of American home entertainment
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答案解析：

请在第37处填上正确答案．

请在第37处填上正确答案．

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分类：英语(二)  题型：单选题
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