题目内容

作废凭证的“作废”标记不可以取消。()

A. 对
B. 错

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已审核或出纳签字的凭证,可以直接删除。()

A. 对
B. 错

对已记账凭证进行整理,应先取消记账,取消审核签字后,才能做凭证整理。( )

A. 对
B. 错

Valve group parts mainly include _____, _____, _____, _____, and _____.

A. valve
B. valve seat
C. valve guide
D. valve key
E. valve spring

Valve transmission group parts include _____, _____, _____, _____, rocker arm assembly etc.

A. camshaft
B. timing transmission
C. tappet
D. push rod

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