通常，卧式杀菌锅可用于（）
A.常压杀菌
B.加压杀菌
C.反压冷却
D.B和C
参考答案：D
_____ their real economic situations, they got some relief fund from the government.
A．Considering
B．Considered
C．Having been considered
D．Being considered
有A克10%的氯化钾溶液
（1）要蒸发去_________，才能成为20%的氯化钾溶液；
（2）要加入_________，才能成为5%的氯化钾溶液．
