下列药物中抗菌谱最广的是
A．氨基糖苷类
B．大环内酯类
C．青霉素类
D．环素类
E．喹诺酮类
参考答案：D
—Excuse me,what time is it?
—Sorry,I have no watch.
—
A．What a shame.
B．Thanks anyway.
C．It doesn’t matter.
D．Why not buy one?
轮班工作制对人体健康（）
A.没有影响
B.有益
C.不益于身心健康
D.可引起不良习惯
E.加速身体损伤
