48.下圖藥物抑菌作用的標的為:
(A)transamidase
(B)dihydropteroate synthase
(C)topoisomerase II
(D)DNA gyrase

【想當廢物但不行QQ】評論
Quinolone對革蘭氏陽性或陰性菌的機轉G(+): Topoisomerase IVG(-): DNA gyrase
【growing up】評論
nalidixic acid為quinolone的第一代,抑制DNA gyrase和Topoisomerase IV,對G(+)有效