问题
选择题
下列有关叙述错误的是[ ]
A．燃烧属于氧化反应
B．只要温度达到可燃物体的着火点，可燃物就能燃烧
C．用灯帽熄灭酒精灯的原理是隔绝空气
D．从火灾现场逃生应该用湿毛巾捂住口鼻，迅速离开
答案
答案：B
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下列有关叙述错误的是[ ]
A．燃烧属于氧化反应
B．只要温度达到可燃物体的着火点，可燃物就能燃烧
C．用灯帽熄灭酒精灯的原理是隔绝空气
D．从火灾现场逃生应该用湿毛巾捂住口鼻，迅速离开
答案：B
| 根据短文内容，用方框中所给词的正确形式填空，使短文完整、正确。 | |
Gala (春晚) he put on two magic shows. They wore very 1______. Now 2______ ismad about magic. We 3______ want to know how to do a trick! Liu didn't go to 4______ magic school. He learned by 5 ______. He worked hard at it. Now he is a great magician. When Liu was seven, he saw a coin trick 6______ a big store. At that moment Liu decided 7______ magic. Liu practiced hard 8______ his skills. Then one day he was able to put on a show 9______his class. "I______the surprise on everyone's face. It was cool." Liu still practices hard today. He may spend three years working on a new show. |