单项选择题
A.15~20 B.20~30 C.25~35 D.30~40
A.18 B.20 C.22 D.24
A.CHB031-ZSMJ-5109100XKY00A A1-191224 B.NOBO-CHB031-ZSMJ-5109100XKY00A A1-0.6-191224 C.NOBO-CHB031-ZSMJ-5109100XKY00A A1-0.6 D.CHB031-ZSMJ-5109100XKY00A A1-0.6
下列导柱或导套的固定方式错误的是()
A.A B.B C.C D.D
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