The soil is becoming poor because farmers here mostly use only one kind of chemi

题干

The soil is becoming poor because farmers here mostly use only one kind of chemical fertilizer for several years________.

A．in a row	B．on a large scale
C．at random	D．to a degree

上一题下一题 0.64难度单项选择更新时间:2015-06-10 06:08:32

小学学科试题库

初中学科试题库

高中学科试题库