如果一国本位制度中规定货币单位受（）的约束，则称为规范本位制。

A.国家法律

B.等量金属或他国货币等价

C.国家货币政策

D.国家货币制度

—Your sister nearly _______ all her spare time to her study during the three years.

—That's right, or she ________ the first place in her school in the examination.

A．devoted; wouldn't have taken

B．spent; wouldn't have taken

C．had devoted; hadn't taken

D．had spent; couldn't take