下列氨基糖苷类抗菌药物中，损害肾小管上皮细胞发生率最高的是（）
A.新霉素
B.卡那霉素
C.妥布霉素
D.阿米卡星
E.奈替米星
参考答案：A
小题1: Which road sign tells us that we must NOT turn right?
小题2:Outside our school there’s a sign like this. What should the drivers to when they see it?
A．They must stop the car immediately and wait there.
B．They must take a U-turn there.
C．They mustn’t even stop the car in that area.
D．They mustn’t drive the car into that area.
衡量心肌自律性高低的指标是
A．动作电位幅值
B．动作电位水平
C．最大复极电位水平
D．阈电位水平
E．4期膜电位去极速率
. What should the drivers to when they see it?