每日一练:职称英语考试卫生类每日一练(2019/7/13)
【单选题】
If headaches only occur at night,lack of fresh air is often the cause.
A.deliver
B.fall
C.happen
D.arrive
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每日一练:职称英语考试卫生类每日一练(2019/7/13)
【单选题】
If headaches only occur at night,lack of fresh air is often the cause.
A.deliver
B.fall
C.happen
D.arrive
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