题目

下列燃烧反应的反应热是燃烧热的是( ) A．H2(g)＋O2(g)===H2O(g)ΔH1          B．C (s)＋O2(g)===CO(g)ΔH2 C．S(s)＋O2(g)===SO2(g)ΔH3             D．H2S(g)＋O2(g)===S(s)＋H2O(l)ΔH4 答案：  C阅读短文，根据短文内容，从短文后的五个选项中选出能填入空白处的最佳选项。每个选项只能用一次。Every day Tim get up at five thirty and then takes a shower.1.for breakfast,Tim usually has an egg and some salad.2. He is train drive and he loves his job.Tim starts working at seven o'clock.3. But he sometimes works on weekends,too.At about one o'clock he has lunch.4.After lunch he works to four and then goes home.In the evening Tim always watches TV.5.He often reads books for half an hour in bed.He thinks reading is a good habit.A. He eats two hamburgers.B. After that he makes breakfast.C. At nine o'clock he goes to bed.D. After breakfast, Tim goes to work.E. He usually works from Monday to Friday.A. He eats two hamburgers.B. After that he makes breakfast.C. At nine o'clock he goes to bed.D. After breakfast, Tim goes to work.E. He usually works from Monday to Friday.