.Because of the heavy sandstorm, we had to put off the visit until tomorrow to the exhibition of painting _____in the nearby city.

A．to hold

B．held

C．holding

D．being held

药品认证，是指药品监督管理部门对药品研制、生产、经营、使用单位实施相应质量管理规范进行（）

A.检查、评价的过程

B.监督、检查的过程

C.检查、评价并决定是否发给相应认证证书的过程

D.监督、检查并决定是否发给相应认证证书的过程

E.监督、评价的过程