题型:名词解释 Has she ever dreamed of____such a splendid scene? [ ]A. there is B. there to be C. there will be D. there being 查看答案
题型:名词解释 相比电站煤粉锅炉,燃油或燃气的电站锅炉炉膛尺寸显得“矮胖”的主要原因是()A.油气的燃烧速度比煤粉高B.燃油或燃气锅炉炉膛内的平均温度更高C.在燃煤锅炉的炉膛内,需要布置更多的水冷受热面 查看答案