什么是蒸发燃烧？
参考答案：
蒸发燃烧是指可燃液体蒸发出来的蒸气在着火能源作用下进可燃气体，一般地说是沸点比较低的可燃液体的燃烧。
He got up very late, _________ his school bag, and _________ to his school at once.
A．taking; dashing
B．took ; dashing
C．taking ; dashed
D．took ; dashed
简述我国中学教育的性质。
