2. 外语
  3. Although we are not sure why we sleep, there is no doubt ______ we need to do so.

Although we are not sure why we sleep, there is no doubt ______ we need to do so.

admin2013-04-08  41
问题 Although we are not sure why we sleep, there is no doubt ______ we need to do so.
选项 A、whether
B、why
C、what
D、that
答案D
解析 尽管我们不确定睡觉的原因，但毫无疑问我们需要这样做。There is no doubt that…为固定句型，意为“毫无疑问……”。
转载请注明原文地址:https://kaotiyun.com/show/par7777K
0

大学英语四级

相关试题推荐
随机试题
最新回复(0)