-I think science is more useful than art.

-I disagree. I think art is            science.

A．not so useful as

B．less useful than

C．the most useful of

D．as useful as

“有权必有责”既我国政府行使权利时，应当依法承担法律责任，实现权利和责任的统一。这是因为 [ ]

A、政府的权利来自于人民

B、侵犯了公民的权利必须依法赔偿

C、对人民负责，才能科学民主决策

D、政府必须依法履行职责