行车中遇到后方车辆要求超车时，应怎样做？
A．及时减速、观察后靠右行驶让行
B．保持原有车速行驶
C．靠右侧加速行驶
D．不让行
参考答案：A
食积脾虚夹积证临床可见（）
A.夜寐难安
B.腹满喜按
C.呕吐酸腐
D.舌红苔厚腻
E.大便溏薄不臭
If heavy smoke is coming from the paint locker,the first firefighting response should be to（）.
A.release the CO fiooding system
B.open the door to evaluate of the fire
C.enter and use a portable extinguisher
D.secure the ventilation
