依据事实,写出下列反应的热化学方程式。 (1)在25℃、101kPa下,1g液体

题型:填空题

问题:

依据事实,写出下列反应的热化学方程式。

(1)在25℃、101kPa下,1g液体甲醇燃烧生成CO2和液态水时放热22.68kJ。则表示甲醇燃烧热的热化学方程式为____________________________。

(2)若适量的N2和O2完全反应,每生成23g NO2需要吸收16.95kJ热量___________________________。

考点:热化学方程式
题型:填空题

根据短文内容,判断下列句子的正误,正确的用“T”,错误的用“F”。

     Do you know Australia? Australia is the largest island in the world. It is a little smaller than China. It is

in the south of the earth. Australia is big, but its population is not large. The population of Australia is nearly

as large as that of Shanghai.

     The government has made enough laws to fight pollution. The cities in Australia have got little air or water

pollution. The sky is blue and the water is clean. You can clearly see fish swimming in the rivers. Plants grow

very well.

    Last month we visited Perth, the biggest city in Western Australia, and went to a wild flowers' exhibition.

There we saw a large number of wild flowers we had never seen before. We had a wonderful time. Perth is

famous for its beautiful wild flowers. In spring every year Perth has the wild flowers' exhibition. After visiting

Perth, we spent the day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was

quiet and we enjoyed ourselves. Suddenly we heard bells ringing at the top of the hill. What we saw made us

pick up all our things and run back to the car as quickly as we could. There were about three hundred sheep

coming towards us down the path.

    Australia is famous for its sheep and kangaroos (袋鼠). After a short drive from any town, you will find

yourself in the middle of white sheep. Sheep, sheep, everywhere are sheep.

( )1. Australia is the largest country in the world.                                  

( )2. The government had made so many laws but it can hardly fight pollution.            

( )3. Perth lies in the west of Australia.                                                 

( )4. In Perth you may visit a wild flowers' show in October.                              

( )5. If you go to the countryside in Australia, you will see a large number of white sheep.

题型:填空题

民用建筑构造中的楼板层的设计要求不包括( )。

A.满足建筑经济的要求

B.满足坚固耐磨、不起尘、平整的要求

C.满足隔声、防火、热工等方面的要求

D.楼板具有足够的承载力和刚度

题型:填空题

我国采用_________和________轮以及少量的轮箍轮。

题型:填空题

哮喘发作期的常用治法有()。

A.寒,化痰定喘

B.清化痰热,定喘止咳

C.解表清里,定喘止咳

D.祛邪扶正,标本兼顾

E.健脾益气,敛肺止喘

题型:填空题

生产外径为5的内螺纹铜管所需要的游动芯头的规格,错误的是()

A.5.76/6.7

B.7.68/8.65

C.8.50/9.50

D.10.62/11.68

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