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【单选题】
碾压机械开行，( )操作简便，压实、铺料和质检等工序协调，便于组织大面积流水作业，且压实质量容易保证。A.
后退法
B.
圈转套压法
C.
进退错距法
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【简答题】I will probably remember one June day seven years ago for the rest of my life. My father had been complaining that my brother and I were watching too much TV, but we ignored him. Then one day we came ...
【简答题】完形填空。 One day I pulled up to my apartment building and noticed there was a father and daughter __ 1 __ some things from a moving truck. Normally I'm shy away from contact with __ 2 __. That particular...
【单选题】My father worked day and night. Otherwise, there ________ no one to support the family.
A.
would be
B.
must be
C.
would have been
D.
must have been
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