账务处理系统中，数据恢复功能可将软盘、磁带上备份的( )拷贝到机器内。
A．程序
B．凭证、科目和账簿
C．DOS
D．系统
参考答案：B
__________ you've got a chance, you might as well make full use of it. [ ]
A. Now that
B. After
C. Although
D. As soon as
优惠原产地规则是指一国为了实施国别优惠政策而制定的原产地规则，又称为“自主原产地规则”。 ( )
