阿摩線上測驗
12. The author mentions all of the following as an example of ways to renew trace minerals in the soil EXCEPT
(A) plowing crop wastes into the soil
(B) organic farming
(C) using appropriate water
(D) growing the same crop year after year
答案：登入後查看
統計： A(13), B(16), C(27), D(86), E(0) #801535
統計： A(13), B(16), C(27), D(86), E(0) #801535
