People should avoid burning wheat stubble（秸秆）, for it can lots of smok

题干

People should avoid burning wheat stubble（秸秆）, for it can lots of smoke and causes serious air pollution.

A．protect

B．prevent

C．provide

D．produce

上一题下一题 0.65难度单选题更新时间:2018-07-16 02:36:41

小学学科试题库

初中学科试题库

高中学科试题库