相关考题
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单项选择题
（）the morning from 0800 to 1200 chief officer is on duty.
A.On
B.In
C.At
D.During -
单项选择题
（）the packing is the same, the lots are different inmarks.
A.For
B.Since
C.Because
D.Although -
单项选择题
（）the repeater compass with the master compass, please.
A.Similize
B.Clock
C.Synchronize
D.Position
