I strongly suggest that the information ______in my report _____to Mr. Brown without delay.

A．to be referred to; to be e-mailed

B．referring to; e-mail

C．referred to; be e-mailed

D．being referred to; being e-mailed

无菌罐清洗过程为什么罐体还要保证一定的压力（）

A.保证无菌环境不被破坏

B.确保罐内液体不会高温汽化

C.为清洗液循环提供动力

D.高压有利于清洗效果