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