根据物理特性及产生方式,可用作原料的废物分为( )。
A.固体可用作原料的废物
B.工业固定可用作原料的废物
C.农业固定可用作原料的废物
D.城市生活垃圾
参考答案:A,B,D
I didn't sell it. I _______it________.
A.put…up
B.put…on
C.put …down
D.give …away
Eighty-two people were reported______in the plane crash.
A.to have injured
B.to have been injured
C.injured
D.injuring