問題詳情
23、Penicillin acts both _____.
(A) killing bacteria and their growth being inhibited
(B) and to kill bacteria and to inhibit their growth
(C) kills bacteria and inhibits their growth
(D) by killing bacteria and by inhibiting their growth
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增