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【单选题】
当铰链四杆机构的各杆长度满足曲柄存在的条件时 , 若以最短杆的相邻杆作为机架 , 则该机构为 ( )A.
曲柄摇杆机构
B.
双曲柄机构
C.
双摇杆机构
D.
曲柄滑块机构
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举一反三
【简答题】I tried to fix the computer myself, but that just made it (bad) ______ than I had expected.
【单选题】I was disappointed with The Transformers 3, for I had expected _ to be much better.
A.
one
B.
this
C.
that
D.
it
【单选题】I was disappointed with the play. I had expected _____ to be much better.
A.
that
B.
this
C.
one
D.
it
【单选题】I was disappointed with the film . I had expected ______ to be much better.
A.
that
B.
this
C.
one
D.
it
【简答题】在韦纳的三维度归因模式中，任务难度属于（ ）
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