良好燃烧的必要条件?
参考答案:
1、供给完全燃烧所必须的空气量;
2、维持适当高的炉膛温度;
3、空气与燃料具有良好的混合;
4、有足够的燃烧时间。
—Look at the sign on the wall.
—Oh, smoking ______ here.[ ]
A. doesn't allow
B. didn't allow
C. isn't allowed
D. wasn't allowed
什么是会计电算化数据处理?