蛋白泡沫灭火剂主要用于扑救B类火灾，也适用于C类火灾，但有限制。
参考答案：错
The children were left _____ of a neighbour when they were on holiday.[ ]
A. in charge
B. in the charge
C. under charge
D. at charge
B737-700客舱内翼上紧急出口的打开方法是（）
A.向内取下
B.内外打开
