允许间隙或过盈的变动量称为（）。
A、最大间隙；
B、最大过盈；
C、配合公差；
D、变动误差。
参考答案：C
_____ writer, she is excellent, _____ teacher she is not very good.
A．As; but as
B．As; and as
C．As a ; but as a
D．As a; and as a
年末结转后，“利润分配”账户的贷方余额表示利润实现额。( )
