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凡开展婚前医学检查、遗传病诊断、产前诊断、施行结扎手术和终止妊娠手术技术服务的医疗保健机构，必须取得《母婴保健技术服务执业许可证》。A.
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【单选题】I think you can take a(n) ______ language course to improve your English.
A.
intermediate
B.
middle
C.
medium
D.
mid
【简答题】简述喷丝孔的排列有哪几种?各有什么特点?
【单选题】听力原文：That business trip was more exhausting than I had expected. After it, I just rested myself for 3 days at home doing nothing. (29)
A.
I expected to see them after the trip.
B.
I thought the trip would be easier.
C.
I expected to take one more trip.
D.
I knew it would be a great trip.
【单选题】According to the passage, new words tend to come from
A.
world politics.
B.
advances in science
C.
areas of life.
D.
all the above.
【简答题】在下图中,开关S闭合前电路已处于稳态,试问闭合开关S的瞬间 为
【单选题】— Have you ever been anywhere for a trip? — A trip? I ________ away from my hometown even once.
A.
went
B.
have gone
C.
have been
D.
have never been
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