题目内容
The traditional view is ______ we sleep because our brain is “programmed” to make us do so.
A.when | B.why | C.whether | D.that |
D
解析
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题目内容
The traditional view is ______ we sleep because our brain is “programmed” to make us do so.
A.when | B.why | C.whether | D.that |
D
解析