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【单选题】
在外圆柱上铣平面，用两个固定短V形块定位，其限制了工件的自由度数为（ ）。A.
2
B.
3
C.
4
D.
5
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皮皮学刷刷变学霸
举一反三
【单选题】what is the historical remaining issue that became the original sin of the united states?
A.
the issue of representation in congress
B.
slavery
C.
fortifying the congress
D.
separation of power
【单选题】what is the historical remaining issue of the constitution that became the original sin of the united states?
A.
slavery
B.
the issue of representation in congress
C.
fortifying the congress
D.
separation of power
【单选题】what is the original sin of the united states?
A.
the issue of representation in congress
B.
slavery
C.
fortifying the congress
D.
separation of power
【简答题】What is Original sin?
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