磺胺类抗菌药物主要作用于细菌的() A.叶酸 B.细胞膜 C.30S核糖体亚单位 D 发布时间:2020-06-04 23:42 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 磺胺类抗菌药物主要作用于细菌的()A.叶酸B.细胞膜C.30S核糖体亚单位D.50S核糖体亚单位E.DNA螺旋酶
题型:单项选择题 A1/A2型题 I don’t think fast food is good for our health, so I _______ go to MacDonald. A.hardlyB.alwaysC.usuallyD.often 查看答案
题型:单项选择题 A1/A2型题 The little boy decided to turn in the wallet and ________.[ ]A. so will he B. so he wallC. so did he D. so he did 查看答案