问题
单项选择题
可燃物质接触火源时能燃烧，当火源移去后仍能维持燃烧的现象称为（）。
A、着火
B、闪燃
C、爆炸
D、自燃
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
可燃物质接触火源时能燃烧，当火源移去后仍能维持燃烧的现象称为（）。
A、着火
B、闪燃
C、爆炸
D、自燃
参考答案：A
It’s September1st, and we’re all back to school. It’s good to all my teachers and friends again. They all fine. We’re in Grade Eight this year. We have new subjects. I’m not very at Chinese, but Han Mei says she can me. I think I can it better. I like English very much. Zhang Hong likes English, . But she needs help. I I can help her. Mr Hu is our new English teacher. He know all of us, so he has our names on a piece of paper and our names before he begins his lesson.
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