27．—Does the new teaching method work ?

— Yes, The students find it easier to     what is being taught.

A．take in

B．take off

C．take up

D．take on

下列文字所描述的经济现象按出现的先后顺序排列正确的是（）

①“机户出资，机工出力”

②“宗庙之牺（指宗庙中用祭祀的牛）为畎亩之勤”

③“今朝半醉归草市，指点青帘上酒楼”

④“九秋风露越窑开，夺得千峰翠色”

A.④①②③

B.④①③②

C.④②③①

D.②④③①