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【单选题】
盐酸环丙沙星的化学名称为（ ）。A.
1－环丙基－6－氯－1，4－二氢－4－氧代－7－(1一哌嗪基)－3－喹啉羧酸盐酸盐一水合物
B.
1－环丙基－6－氟－1，4－二氢－4－氧代－7－(1一哌嗪基)－3－喹啉羧酸盐酸盐一水合物
C.
1－环丙基－6－氟－1，4－二氢一4一氧代－7－(1一哌嗪基)－3－喹啉羧酸盐酸盐一水合物
D.
1－环丙基－7－氟－1，4－二氢－4－氧代－6－(1一哌嗪基)－3－喹啉羧酸盐酸盐一水合物
E.
1－丙基－6－氟－1，4－二氢－4－氧代-7-(1一哌嗪基)－3－喹啉羧酸盐酸盐一水合物
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which
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A.
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B.
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C.
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D.
由人民法院依法追究赵小庆的刑事责任
【单选题】. The teachers hope the little ________ has been learned will be useful when they leave school.
A.
that
B.
what
C.
knowledge
D.
which
【单选题】Although we’ve learned English for years, we have trouble _____ the foreigners.
A.
understand
B.
to understand
C.
understanding
D.
of understanding
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【简答题】Working in the factory will help students put what they’ve learned from textbooks intopractice. ________________________________________________________________________
【单选题】The history teacher often tells his students to________the knowledge they've learned according to chapters. [ ]
A.
divide
B.
separate
C.
classify
D.
collect
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