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【多选题】
具有旋光性的抗生素类药物有A.
盐酸四环素
B.
头孢氨苄
C.
氨苄西林钠
D.
盐酸土霉素
E.
硫酸庆大霉素
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【简答题】How long does the Lucky Promotion last?
【单选题】______ it take you to walk from your home to your office? [ ]
A.
How long is
B.
How long does
C.
How many time does
D.
How many hours are
【单选题】—Could you tell me ___________? —About three hours.
A.
how long does the meeting last
B.
how long will the meeting last
C.
how long the meeting last
D.
how long the meeting will last
【单选题】—Could you tell me ___________? —About three hours.
A.
how long does the meeting last
B.
how long the meeting last
C.
how long will the meeting last
D.
how long the meeting will last
【单选题】---______ does she play volleyball every day? ---_____ half an hour. [ ]
A.
How long; With
B.
How long; For
C.
When; For
D.
When; At
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