—Do you like chatting with your friends on the telephone or mobile phone?

—_____ .  I would rather _____ QQ.     [ ]

A. Either; use                  

B. Neither; use

C. Both; to use                  

D. Neither; to use

氯气干燥前如不进行冷却除水，（）量增大，且放出的热量使干燥操作无法进行。