火焰中心
参考答案:
炉膛中的最高温度点称为火焰中心,也称为燃烧中心。
—I was busy with my homework while you were away to- night, Dad.
—______ The TV set is hot. [ ]
A. I believe it.
B. I think so.
C. You're kidding.
D. You're excellent.
关于“答案”和“答应”正确的说法是()。
A.都是动词
B.前者是动词,后者是名词
C.都是名词
D.前者是名词,后者是动词