Before driving into the city, you are required to get your car ____. [ ]

A. washed            

B. wash              

C. washing      

D. to wash

下列最适用于慢性支气管炎缓解期的措施是

A．口服抗生素预防感染

B．应用平喘药物

C．间断吸氧

D．增强体质，进行缩唇腹式呼吸

E．使用祛痰药物