2013 National Question 5 Single-choice Differentiating 2013_新课标II Paper 5.(4分)残留在土壤中的地膜会( ) ①危害作物根系发育 ②阻碍土壤温度提升 ③阻碍土壤水肥运移 ④加快表土流失速度 A. ①③B. ①④C. ②③D. ②④ Answer keyA ☆ SaveCan't do it, show the explanation查看原卷 →