科学课上,陈老师取出一瓶柠檬汽水,神秘兮兮地对同学们说:“今天我给大家表演个魔术,叫作‘葡萄干,蹦蹦蹦’。”说完,他将柠檬汽水倒进一个玻璃杯里,然后掏出几个葡萄干扔了进去,只见葡萄干立刻沉到了瓶子底部。紧接着,他又一扬手,从空中抓了一把什么似的,扔进瓶子里,然后得意洋洋地说:“现在就是见证奇迹的时刻。” Science class, Chen took out a bottle of lemon soda, mysteriously to the students said: “Today I show you a magic, called ’raisins, bouncing.’” Finish, he will lemon soda Into a glass, and then pulled out a few raisins thrown into it, saw the raisins immediately sink to the bottom of the bottle. Then, again, he raised his hand and grabbed something from the air and threw it into the bottle, then triumphantly said: “Now is the moment to witness the miracle.” "