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【单选题】
静止土压力系数K0与土的泊松比ν的关系，以下正确的是（ ）。A.
K 0 = ν /(1+ ν )
B.
K 0 =(1- ν )/ ν
C.
K 0 = ν /(1- ν )
D.
K 0 =(1- ν )/(1+ ν )
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【简答题】样本(sample)
【单选题】— I hear Daming has gone to Hainan Island for his holiday. — Oh, how nice! Do you know when he ? [ ]
A.
was leaving
B.
had left
C.
has left
D.
left
【单选题】—I hear Sam has gone to Qingdao for his holiday. —Oh, how nice ! Do you know when he ? [ ]
A.
left
B.
was leaving
C.
has left
D.
had left
【简答题】样本 (sample)
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