吸附剂一旦吸入（），就很难或根本不可能被除去，这将严重损坏吸附剂的（）。
参考答案：液体、性能
---- I called you 10:30 p.m, but you didn’t answer it.
----I _____my work and ______a bath.[ ]
A. was doing; had taken
B. had done; had taken
C. was doing; was taken
D. had done; was taking
下列杀菌设备，（）为间歇式。
A.轨道回转式
B.静水压式
C.水封式
D.淋水回转式
