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It's not_______ good idea to work hard for four hours without_______ break.
A.a; aB.the; a
C.the; theD.a; the
A

试题分析:句意:不休息连续努力工作四个小时,这不是一个好主意。本题考查冠词,a/an是不定冠词,表示泛指一个……;定冠词the表示特指。根据句意可知,第一个空a good idea,一个好主意;第二个空的break在这里是休息的意思,without a break是一个短语。故选A。
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