2. 外语
  3. A、It was rising. B、It was lowering. C、It remained unchanged. D、It was fluctuating. B细节题。通过浏览选项可知，本题问的是变化趋势。是上升?下降?未变?还是波动?文中关键句子

A、It was rising. B、It was lowering. C、It remained unchanged. D、It was fluctuating. B细节题。通过浏览选项可知，本题问的是变化趋势。是上升?下降?未变?还是波动?文中关键句子

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问题
选项 A、It was rising.
B、It was lowering.
C、It remained unchanged.
D、It was fluctuating.
答案B
解析 细节题。通过浏览选项可知，本题问的是变化趋势。是上升?下降?未变?还是波动?文中关键句子是：It is interesting to note that the rate of heart disease began to decrease between 1992 and 1994 and it is still decreasing. 正确答案为B，lowering即下降。D是“波动”的意思。
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大学英语四级

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