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【单选题】
绘制机构运动简图一般要完成的工作有:A.选择比例尺B.分析机构的运动C.选择视图平面D.确定构件的数目E.确定运动副的数目和形式F.用规定的符号表示运动副和构件G.标明件H.给构件编号(1,2,3,……),给运动副编号(A,B,C,……)
A.
B-A-C-D-E-F-G-H
B.
B-D-E-C-A-F-H-G
C.
A-C-B-E-D-H-G-F
D.
A-C-E-G-B-D-F-H
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