蒸发工序采用除盐的方式有哪些?
参考答案:
有蒸发浓缩、旋液分离、离心分离、沉降、冷却、过滤。
The old man asked the girl to take another seat _______ he wanted to sit next to his wife. [ ]
A. because
B. so that
C. so
碘类消毒剂能杀灭的微生物为()
A.分枝杆菌
B.细菌芽孢
C.真菌
D.病毒
E.SARS