根据同一凭证，对经济业务既进行明细核算，同时又进行综合核算，这就是“双线核算”原则。
参考答案：对
It is hoped that every student in our country will read ________.[ ]
A. a such good book
B. a good such book
C. such good a book
D. such a good book
I______ myself more－it was a perfect day.
A．shouldn’t have enjoyed
B．needn’t have enjoyed
C．wouldn’t have enjoyed
D．couldn’t have enjoyed
