問題詳情
【題組】49
(A) Fortunately, not many can be found in the soil.
(B) Then they exposed the samples to eighteen antibiotics.
(C) Also, the antibiotics can be natural ones like penicillin.
(D) What is more, all but one of the antibiotics became food for bacteria in most soil types.
參考答案
答案：D
難度：困難0.2
統計：A(2),B(3),C(3),D(2),E(0)