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【单选题】
OTDR 固有偏差主要反映在距离分辨率上,不同的测试距离偏差不同,在 ( ) km 测试范围时。A.
50
B.
100
C.
150
D.
200
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举一反三
【单选题】Jane said she (heard) someone (in) the classroom, (but) when we looked we didn't find someone.
A.
heard
B.
in
C.
but
D.
someone
【单选题】We couldn't trust her for she is always____. Look, she ____ some eggs on the table and said these newly- ____ eggs were her own. In fact they were her neighbor's. [ ]
A.
lying; lay; laid
B.
laying; lied; lain
C.
lying; laid; laid
D.
laying; lay; lain
【单选题】Which of the following best explains the meaning of “ She said we should finish the work as soon as possible. ” ?
A.
She said that we were going to finish the work.
B.
She ordered that we must finish the work.
C.
She suggested that we finish the work in time.
D.
She advised us not to finish the work unless we meet the deadling.
【单选题】We don't know ________. It is said that she would come tomorrow. [ ]
A.
how she will come
B.
when she came
C.
when she will come
D.
when she comes
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