下列生活实例中,属于内能转化为机械能的是
- A.冬天人们常用双手互相摩擦取暖
- B.用茶壶烧水,水烧开时,茶壶盖被顶起
- C.钻木取火
- D.四冲程汽油机的压缩冲程
正确答案及解析
正确答案
B
解析
暂无解析
包含此试题的试卷
你可能感兴趣的试题
Dogs are the best pets of humans. They come in all sizes. Some dogs are as small as a football, and others are as tall as a desk. Dogs’ fur (毛) is different, too. It can be long and soft, or smooth and hard. People don’t mind the kind of fur, because all dogs are good to hug.
- 查看答案
请在字典中查一下这个词。
- 查看答案
我喜欢甜食, 你知道的。
- 查看答案
去年, 彼得在旅途中和许多人交了朋友。
- 查看答案