A：向Na2SiO3溶液中通入过量CO2： SiO32－+CO2+H2O = H2SiO3↓+CO32－
B：酸性介质中KMnO4氧化H2O2：2MnO4－ ＋5H2O2＋6H＋= 2Mn2＋＋5O2↑＋8H2O
C：等物质的量的MgCl2、Ba(OH)2 和 HCl 溶液混合：Mg2＋＋2OH－= Mg(OH)2↓
D：用CH3COOH溶解CaCO3：CaCO3＋2H＋=Ca2＋＋H2O＋CO2↑
请以“感谢那个为我提灯的人”为题，写一篇不少于500字的记叙文，文中不得出现真实的姓名和校名。
钩码总重／Ｎ
0
0.5
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指针位置／cm
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阅读短文，根据短文内容判断正误，在括号内写正确或错误。
I'm Chinese girl. My English name is Lily. I like English very much. I can speak(说) some English now. I have a good friend. Her name is Ann. She has long hair and blue eyes. She's from America. This is my classroom. It's not big, but it's nice and clean. There are twenty-four desks and chairs in it. They are new. I like my classroom very much.
