生活中的下列变化不涉及化学变化的是

    游船在翡翠般的大海上继续向哲尔赛岛前进……

    父亲急忙向我们跑来。“克拉丽丝！克拉丽丝！”他眼中放着光，脸涨得红红的，像熟透的苹果。“快去看啊，那个吃牡蛎的极有风度的先生怎么那么像于勒！在他身旁还有一位高贵的妇人呢！”显然是由于狂喜，父亲抑制不住激动地大声说道。“是吗？太好了！上帝保佑！可把他盼回来了！” 母亲一时不知用什么语言来表达她与丈夫的同样的心情。“快，快去……看看咱们的亲弟弟……”

线段AB=10cm，当AB绕它的____ 旋转一周时，它所“扫描”经过的平面面积最小，此时面积为　____ cm²．

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每句不超过两个错误；

2）每处错误及其修改均只限一词；

3）只允许修改10处，多者（从第11处起）不计分。

    Wechat is becoming increasing popular. The other day, when I was walking by a food shop, I notice an old woman buying some food. She didn't pay in cash. Instead of, she paid with WeChat. WeChat payment is becoming more and more popular. Why do people like to use WeChat payment? The main reason is because it is simple and convenience. What we need to do are to take out the cellphone, scan the QR code and pay the goods we buy. We don't have to carry wallets with me any longer. WeChat payment, that has changed the way we shop, is created by Chinese. We each should be proud of be a Chinese. It shows to the world that Chinese people are creative.

如图是自动回转的“魔罐”，橡皮筋两头分别固定在罐子的顶部和底部，中间系一个钩码，当你将“魔罐”在水平地面上滚出后，它能自动滚回来的原因是 ____能转化为 ____能．

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