下列关于燃料充分燃烧的说法,不正确的是
A.通人适量的空气
B.固体燃料燃烧前要粉碎
C.液体燃料燃烧时可以以雾状喷出
D.化石燃料在任何条件下都能充分燃烧
答案:D
I wanted to know ______ a party this evening. [ ]
A. if there was going to have
B. if there is going to be
C. if there was going to be
D. if there is going to be
BQD10—80型磁力启动器接触器不自保的原因是什么?