万古霉素的作用机制()。 A.阻断细菌细胞壁肽聚糖的合成 B.抑制DNA旋转酶 C. 发布时间:2020-09-12 09:27 │ 来源:www.tikuol.com 题型:单项选择题 B型题 问题: 万古霉素的作用机制()。A.阻断细菌细胞壁肽聚糖的合成B.抑制DNA旋转酶C.竞争结合二氢叶酸合成酶D.干扰细菌的氧化还原系统E.抑制mRNA的转录和蛋白合成
题型:单项选择题 B型题 Henry can't attend the party __________ at Tom's house at present because he is preparing the speech at the party __________ at Marie's house tomorrow.[ ]A. held; being held B. to be held; to be heldC. to be held; held |D. being held; to be held 查看答案