It's very hard to imagine _________ without television. [ ]

A. how life would be like

B. how is life

C. what life would be like

D. what is life

A heated bulkhead has the effect on a hygroscopic commodity of（）.

A.causing moisture to accumulate against bulkhead

B.lowering the vapor pressure of the commodity

C.lowering the dew point of the air

D.raising the vapor pressure of the commodity