题干
Our school is so famous that _______ people come and visit it every term.
A：hundred
B：hundreds
C：hundred of
D：hundreds of
答案(点此获取答案解析）
D
Our school is so famous that _______ people come and visit it every term.
A：hundred
B：hundreds
C：hundred of
D：hundreds of
。现有0.75mol CH4和CO的混合气体，完全燃烧后生成CO2(g)和18g H2O(l)，共放出515.9kJ热量，由上可知1mol CO完全燃烧放出的热量为（ ）