题目内容

It’s very important for a student to ________ a good state of mind while taking the college entrance examination.
A．keep out B．keep onC．keep upD．keep off
C
短语辨析. A．阻止进入   B．继续;后接动名词,表示继续做某事   C．保持;继续;不落后 D．让开;不接近.根据题意,对一个学生来说,当参加大学入学考试时,保持一个好的精神状态是非常重要的.故选C.
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