精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

-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．a(chǎn)s useful as

---- I think science is more useful than art.
---- I disagree. I think art is _________ science.

---- I think science is more useful than art.

---- I disagree. I think art is _________ science.

-I think science is more useful than art.
-I disagree. I think art is            science.