我国曾开展过一次“剿灭麻雀”运动，这种做法最主要的危害是_刷题宝

题干

我国曾开展过一次“剿灭麻雀”运动，这种做法最主要的危害是（　　）

A：破坏生态平衡

B：增加农作物的病虫害

C：影响农作物种子的传播

D：减少了人类的朋友

上一题下一题 0.0难度选择题更新时间:2019-11-19 12:41:50

答案(点此获取答案解析）

B

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