题目

   Last week, my granddaughter started kindergarten, and I wised her every success. But part of me didn’t. I actually wanted her to fail in some ways because I believe that failure can be good for our learning process. Success is proving that you can do something that you already know you can do , or doing something correctly the first time, which can often be a problematic(存在问题的)victory. First –time success is usually a fluke（侥幸）,First-time failure ,by contrast, is supposed to be the natural order of things . Failure is how we learn. In Africa they describe a g饮用含甲醇的酒，可造成失明，甚至中毒死亡．如图是甲醇燃烧的微观示意图（未配平），下列有关说法或化学方程式错误的是（　　）A.工业酒精中往往含有甲醇，禁止用工业酒精配制饮料酒B.CH3OH+3O2CO2+4H2OC.每个甲醇分子比每个乙醇分子少一个原子团“CH2”D.等质量的甲醇与甲烷分别在足量氧气中完全燃烧，甲醇消耗的氧气比甲烷少