一般情况下,固定污染源排气温度可在烟道内任一点测定。
参考答案:错
解析:固定污染源排气温度应在烟道中心点测定。
It was when I searched the Web for some information about my classmates that I __ your website.
A.came about
B.came after
C.came at
D.came across.
复层鳞状上皮从底层到表层细胞形态的变化规律是什么?