—I like KFC.

—We should not eat ________junk food.

A. too many         B. too much         C. many too    D. much too

半导体压敏电阻式增压压力传感器的硅膜片的两面一面通真空室，一面通（）。

A.进气歧管

B.排气歧管

C.进气总管

D.排气总管