His younger sister may already be in high school now, in ________ case this picture book is too childish for her.

A．that

B．which

C．whose

D．what

政府对工程项目进行管理，是为了保证投资方向符合（）的要求。

A．国家产业政策

B．地方产业政策

C．国家经济政策

D．地方经济政策