多黏菌素B的抗菌机制是
A．影响叶酸代谢B．抑制核酸合成C．抑制细菌细胞壁的合成D．抑制蛋白质合成的全过程E．影响胞浆膜的通透性
参考答案：E
—Mum，I really think Dad should have a break and get relaxed.
—Yes. He too long. [ ]
A. read
B. had read
C. has been reading
D. is reading
用SQL语言描述“在教师表中查找男教师的全部信息”，以下描述正确的是（ ）。
A．SELECT FROM 教师表IF(性别=‘男’)
B．SELECT性别FROM教师表IF(性别=‘男’)
C．SELECT * FROM教师表WHERE(性别=‘男’)
D．SELECT * FROM性别WHERE(性别=‘男’)
