2. 外语
  3. The Japanese doctors find out that ______. We should not rely on pocket calculators because ______.

The Japanese doctors find out that ______. We should not rely on pocket calculators because ______.

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问题 The Japanese doctors find out that ______.
We should not rely on pocket calculators because ______.
选项 A、they are not clever as our brains
B、they are harmful to our brains
C、we need to use our brains to prevent it from shrinking
D、we could not get enough practice on mathematics
答案B
解析 细节题。文章第六段指出，防止大脑萎缩的最好办法就是用脑，而不应该依赖计算器，所以B正确。
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大学英语四级

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