化学泡沫灭火器适用于扑救（）火灾。
A、水溶性可燃
B、易燃液体
C、带电设备
D、石油制品
参考答案：D
进食后，使机体额外消耗能量最多的食物种类是( )
A．糖 B．脂肪C．蛋白质 D．混合食物
单句改错
1. It is a lot more excited to travel by air than by water.
2. You can see falling leaves everywhere in autumn.
3. On arriving home, she found her husband looked worried.
4. Losing in thought,he didn't hear what his teacher said at all.
