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【单选题】
只承受转矩，而两端均不承受其他任何反反力矩的半轴支承型式称为（）。A.
式半轴支承
B.
半浮式半轴支承
C.
刚性式半轴支承
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举一反三
【简答题】Not until yesterday ______ his mind. A) did he change B) he changed C) had he changed D) he had changed
【单选题】Not until yesterday __________his mind.
A.
he changed
B.
he had changed
C.
does he change
D.
did he change
【单选题】In the OSI model, which of the following layers would be the cause of a session time-out while browsing the web?（）
A.
Laye r2
B.
Layer 3
C.
Layer 5
D.
Layer 7
【单选题】______ , someone rang me up.
A.
While I left
B.
While I was leaving.
C.
On leaving
D.
While leaving
【简答题】对于将现金送存银行的业务，会计人员应编制的记账凭证是（ ）。
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