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  3. No direct relationship has been proven between high cholesterol levels and heart attacks. Compared with the number of American

No direct relationship has been proven between high cholesterol levels and heart attacks. Compared with the number of American

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问题 No direct relationship has been proven between high cholesterol levels and heart attacks.
Compared with the number of American people who had their blood cholesterol levels checked in 1990 was ______ than that of in 1983.
选项
答案much larger/larger/much greater/greater
解析 much larger/larger/much greater/greater。根据题干中的年份将答案出处定位到文章倒数第二段。该段列举了1983和1990年知道自己cholesterol levels的人数，即在1983年人数仅仅是35%，到1990年人数达到65%，因此 1990年的人数比1983年多，填入much larger/larger/much greater/greater均可。
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