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【多选题】
在观测垂直角时,用经纬仪正倒镜观测能消除( )。A.
视差
B.
视准轴不垂直于横轴
C.
竖盘指标差
D.
读盘刻划误差
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举一反三
【单选题】Some students can’t go to the show ______ the exam this week.
A.
because
B.
because of
C.
if
D.
so
【单选题】Jane______ dance at the age of ten,but now she dances well.( )
A.
can't
B.
wasn't able to
C.
is able to
D.
Could
【单选题】With so much noise outside, the students can’t _____ their homework.
A.
concentrate on
B.
depend on
C.
keep on
D.
put their hands on
【单选题】Which fallacy is at work in the following? "Ms. Turnier gave me extra homework for running in class. She has a rule against it. But I told her, 'I wasn't running, I was walking. One foot was in front ...
A.
line-drawing fallacy
B.
poisoning the well
C.
slippery slope
D.
begging the question
【单选题】You went to the post office yesterday, __________?
A.
do you
B.
don’t you
C.
did you
D.
didn’t you
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