试题与答案

汽车尾气中的主要污染物是及燃料不完全燃烧所产生的。前者产生的原因是(用化学方程式

题型:填空题

题目:

汽车尾气中的主要污染物是          及燃料不完全燃烧所产生的          。前者产生的原因是(用化学方程式表示)                                        。经计算,反应2NO (g)+2CO(g)=N2(g)+2CO2(g)的△H-T△S<0,即这一反应应该是自发进行的,为什么常温常压下大气中的NO和CO不能转化为N2和CO2而净化?             

                                                                     

答案:

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C.earned more money than Spider-man 2

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A.more and more people can see the movie

B.Spider-man 3 will be enjoyed by children

C.Spider-man 3 will make as much money as the first two movies

D.Spider-man 3 will be as popular in North America as it was in other places小题3:In which country did Spider-man 3 earn the most money?

A.Germany.

B.Italy.

C.South Korea.

D.America.小题4:The main idea of the passage is that ______.

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C.Spider-man 3 cost lots of money

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