手段-目的策略

Chinese students usually spend ______ the students of the US studying in their free time.

A．twice as many hours as

B．as twice many hours as

C．twice hours as many as

D．as many as twice hours

超声波探伤方法中，A、B、C三种显示各有什么特点？

焊接中，焊接接头的形式有哪几种？

信托经理将收到的赎回申请资料原件与牵头分行交付的《客户赎回申请明细表》核对无误后，需制作《赎回客户清单确认函》并在T-（）日前返给总行私人银行部运营监控团队。

A.10

B.15

C.20

D.25

印刷企业接受出版单位委托，印刷有统一刊号（CN）以及采用国际标准书号编序的图书、报纸和杂志，按货物销售征收增值税。（）