间歇式水煤气的生产和混合煤气的生产不同。以水蒸气为气化剂时，在气化区进行碳和水蒸气的反应，不在区分（）和（）。
参考答案：氧化层；还原层
连词成句
1. and, for, that, vegetables, fruit, health, are, good, people, most, agree
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2. display, some, famous, the, are, of, photos, her, on, in, exhibition, most
3. can, lot, traveling, taxi, cost, a, by, of, money
4. people, hope, future, dream, the, they, to, achieve, things, all, in, about
5. your, are, getting, you, along, how, with, neighbor
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