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问题 单项选择题

4 下列哪种心律失常在急性心肌梗死时多见

A．房室传导阻滞

B．房性早搏或心房纤颤

C．右束支传导阻滞

D．预激综合征

E．室性早搏或室性心动过速

答案

参考答案：E

填空题
选择方框内合适的词，并用其适当形式填空。
fair, crowd, shake, shiny, science
1. If you want to have the________hair of all, you should use the kind of shampoo.
2. Jim always gets good grades because he studies in the________way.
3. It was________that mom gave a new schoolbag to my brother, but I got nothing.
4. The train station is quite________before the Spring Festival.
5. They________hands and said "Goodbye" to each other.
church, thousand, special, shut, full
6. The disabled man has a________trained dog.  It helps him a lot.
7. —It's too noisy outside. Do you mind________the door?    
    —Of course not.
8. The basket is________with eggs.  You'd better be careful to carry it.
9. Tea, the most popular beverage was discovered over three________years ago.
10. Do you know Notre Dame Cathedral? It's one of the most famous________in the world.
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选择题

在一定条件下CO和CH4燃烧的热化学方程式分别为

2CO(g)+O2(g)=2CO2(g)△H="-566kJ/mol "

CH4(g)+2O2(g)=CO2(g)+2H2O(g) △H="-890kJ/mol" 由等物质的量的CO和CH4的混合气体共3mol，在上述条件下完全燃烧时放出的热量是                                               

A．879.75 kJ

B．1092 kJ

C．1759.5 kJ

D．2184 kJ
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