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【判断题】
粗纱加捻的目的是为了粗纱有一定物理机械性能,满足服用性能的要求。A.
正确
B.
错误
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【单选题】关于作为与不作为在主观方面的特点是（）。
A.
作为都是故意，不作为都是过失
B.
作为和不作为都是故意
C.
作为是故意和过失，不作为是过失
D.
不作为和作为都是既有故意也有过失
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