电器设备着火应选用（）扑救。
A、水
B、泡沫灭火器
C、1211灭火器（卤代烷灭火器）
D、干粉灭火器
参考答案：C
sin45°cos60°+sin30°=______．
连词成句，我最棒！
1. want do Where you go to
2. you want Do to go shopping
3. eat to ice cream She want does not the
4. movie Let's a to watch go
5. in clerk A store works a
