48. Why is planting an organic vegetable garden an effective way of “Thinking Green”?
(A) It promotes the sales of pesticides.
(B) It reduces the use of poisonous chemicals.
(C) It helps change the climate.
(D) It keeps the gardeners from being harmed by the beneficial insects.
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統計: A(0), B(56), C(25), D(5), E(0) #628507
統計: A(0), B(56), C(25), D(5), E(0) #628507