发布时间:2025-01-18 18:56:20
当蜗牛踩下按钮时,有一石条会上升,按那个石条左边按钮不让它再下来,当然你还要停住蜗牛。当小虫踩下按钮时又有一石条上升,,同样,按其右边按钮,不让石条再下来。等着小虫过到最右边的弹簧装置上时按下按钮把他弹飞起来碰到上边的按钮,之后就有起降机升起,,此时只等着让你的蜗牛上到起降机上就可以过关了
用生石灰遇水反应放热原理制作冬天暖手的热水袋现实吗有没有谁试过或者想试试的
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