問題詳情
15. ________ are toxic proteins secreted by pathogenic bacteria, and ________ are toxic components of the outer membrane ofgram-negative bacteria.
(A) Endotoxins； parasites
(B) Endotoxins； botulinum toxins
(C) Exotoxins； enterotoxins
(D) Exotoxins； endotoxins
(E) Endotoxins； enterotoxins
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增