---What does you brother do?       

----     .

A．He works very hard

B．He is outgoing and friendly

C．He is a shop assistant

D．He is tall with curly hair

抗溶性泡沫灭火剂可以扑灭一般烃类液体火焰，但不能扑救水溶性有机溶剂的火灾。