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【单选题】
导线测量角度闭合差的调整方法是( )。A.
按角度个数平均分配
B.
反号按角度大小比例分配
C.
反号按平均分配
D.
反号按角度个数平均分配
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反馈参考答案：
举一反三
【单选题】— Your brother isn't at home. Where is he? — He _____ to Beijing. He _____ for over 2 months. [ ]
A.
has been; has left
B.
has gone; has gone
C.
has gone; has been away
【简答题】P137五1.PNG
【单选题】—— Where is your father? —— He has gone to the supermarket. He __________ at home.
A.
must be
B.
mustn’t be
C.
can be
D.
can’t be
【单选题】Where are your brothers? _____. [ ]
A.
He is at home
B.
He is in his room
C.
Yes,they are
D.
I don't know
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