阿摩線上測驗
4.Farmers have learned that it is advisable to permit land to lie__________ every few years.
(A) shallow
(B) fallow
(C) mellow
(D) fertile
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統計： A(0), B(0), C(0), D(2), E(0) #3031437
統計： A(0), B(0), C(0), D(2), E(0) #3031437
