当加工细长轴零件时，必须附加辅助支承（）。
A.中心架或跟刀架
B.鸡心夹头
C.花盘
D.顶尖
参考答案：A
The decision was made while I was not present.
The decision was made .
会计报表是根据( )定期进行归集、加工和汇总而编制的。
A．原始凭证
B．记账凭证
C．会计凭证
D．会计账簿记录
