A:氢气燃烧:2H2↑+O2↑=2H2O (化合反应)
B:用生石灰制熟石灰:CaO+H2O=Ca(OH)2 (置换反应)
C:二氧化碳的检验:CO2+Ca(OH)2=CaCO3↓+H2O(复分解反应)
D:车用乙醇汽油中的乙醇燃烧:C2H5OH+3O2 点燃_ 2CO2+3H2O (氧化反应)
阅读下面文言文,回答小题
鲁人徙越
鲁人身善织屦①,妻善织缟②,而欲徙于越。或谓之曰:“子必穷矣!”鲁人曰:“何也?”曰:“屦为履③之也,而越人跣④行;缟为冠之也,而越人被发。以子之所长,游于不用之国,欲使无穷,其可得乎?”
(选自《韩非子·说林上》)
【注释】①屦:麻鞋。②缟:白绢,周人用缟做帽子。③履:鞋,这里用作动词,指穿鞋。④跣:赤脚。
A.除握把外的门把手结构与尺寸如图所示
B.一般人手的相关尺寸
C.握把与原门把手结构通过内螺纹孔连接,转动时不打滑;
D.操作门把手舒适,安全;
E.用厚度为5mm的钢板制作,其它零配件自选。
根据以上材料,完成以下的任务:
周末,父亲带刘丽去歌乐山与朋友聚会,长辈们打牌、聊天、喝洒,玩得很尽兴。不知不觉中天色已晚,父亲认为虽然洒后驾车违法,但交警可能已下班,不会被查到。执意要开车回家。此时,刘丽应该对父亲说( )
阅读理解,根据短文选择正确的一项
One day a policeman was walking in the park. He saw a man there. The man was holding a penguin(领着一个企鹅). The man said to the policeman, “ I found this penguin this morning. What shall I do with it?”“Take it to the zoo,” said the policeman. The next day the policeman saw the man again. He was still holding the penguin. The policeman said, “Why didn't you take the penguin to the zoo?”“I did,” said the man. “I took him to the zoo yesterday. Today I'm taking him to the cinema.