考试
2020-03-16 03:10:07

9438 结合除涝的田间排水沟,当农沟深度1.5m-2m时,

题目描述

结合除涝的田间排水沟,当农沟深度1.5m-2m时,间距一般为()A.50-150mB.100-200mC.150-250mD.200-30



结合除涝的田间排水沟,当农沟深度1.5m-2m时,间距一般为()

A.50-150m

B.100-200m

C.150-250m

D.200-300m

请帮忙给出正确答案和分析,谢谢!

答案解析

B

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