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【单选题】
测定磁的摆动半周期是用来检查磁针的（）。A.
灵敏度
B.
磁矩
C.
指北磁距
D.
BC都对
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反馈参考答案：
举一反三
【单选题】Never trouble till trouble you.
A.
trouble; trouble
B.
troubles; troubles
C.
trouble; troubles
D.
troubles; trouble
【单选题】My old bike broke down on the way home and it ____me ___. A.got; into trouble B. get; out of trouble C. makes ; into trouble D. made ; out of trouble
A.
got; into trouble
B.
get; out of trouble
C.
makes ; into trouble
D.
made ; out of trouble
【单选题】- What does the sentence “Don’t trouble trouble till trouble _______ you .” mean ? - Sorry , I have to idea .
A.
trouble
B.
troubles
C.
troubled
D.
will trouble
【单选题】His brother made ________ by accident. A. the all trouble B. the wholetrouble C.whole the trouble D. all the trouble
A.
the all trouble
B.
the wholetrouble
C.
whole the trouble
D.
all the trouble
【单选题】—What does the sentence 'Don't trouble trouble till trouble ____ you' mean? —Sorry, I have no idea. [ ]
A.
trouble
B.
troubles
C.
troubled
D.
will trouble
【单选题】They will try to help others who are ________. A. in trouble B. have trouble C. get into trouble
A.
in trouble
B.
have trouble
C.
get into trouble
【单选题】—What does the sentence 'Don't trouble trouble till trouble _______`you'mean? [ ]
A.
trouble
B.
will trouble
C.
troubles
D.
troubled
【单选题】We should help her when she is ______. [ ]
A.
in trouble
B.
in a trouble
C.
in the trouble
D.
in troubles
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