第34题: [填空题]Compared with the number of American people who had their blood cholesterol levels checked in 1990 was ______ than that of in 1983. 参考答案:much larger/larger/much greater/greater 答案解析:[解析] 根据题干中的年份锁定文章倒数第二段。本段列举了1983和1990年知道cholesterol levels的人数,即In 1983,only 35 percent of the Americ