等质量的碳和一氧化碳分别与足量的氧气反应,下列说法正确的是( ) A.碳需要的氧

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问题:

等质量的碳和一氧化碳分别与足量的氧气反应,下列说法正确的是(  )

A.碳需要的氧气多

B.一氧化碳需要的氧气多

C.一氧化碳生成的二氧化碳多

D.生成的二氧化碳一样多

考点:化学反应方程式的计算一氧化碳的性质和用途碳的性质
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One day a Chinese student went to study English in England. His family name is Sun. It is the same as the word “sun”. England is a country with bad weather. It is often cloudy or foggy, and it rains now and again. So the people there don’t get much sunshine in the whole year. When the Chinese student went to London, a tall English policeman with a large face opened his passport to examine(检查) it. The policeman was interested to find the Chinese name “sun” in the passport. He thought it was pronounced just like the English word “sun”,so he said to the Chinese student, “ I see your name is sun. You are wanted here.”

The Chinese student was greatly surprised. But after a moment the policeman began to smile, “Mr. Sun, you’ve brought sunshine to England! So we don’t want you to go away.”

根据短文内容,判断正(T)误(F)。

小题1:The Chinese student’s family name is pronounced just like the English word “sun”.

小题2:London, the capital of England, is called “The foggy city”.

小题3:In London, a tall Englishman with large eyes examined the Chinese student’s passport.

小题4:The policeman in London was interested in the Chinese name “sun”.

小题5:Mr. Sun was really to bring sunshine to England.

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在一个远离大陆且交通不便的海岛上,居民中有66%为甲种遗传病(基因为A、a)致病基因携带者。岛上某家族系谱中,除患甲病外,还患有乙病(基因为B、b),两种病中有一种为血友病。请据图回答问题:

Ⅱ-6的基因型为().

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过滤字节输出流都是【 】抽象类的子类。

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按规定至少每()应进行一次应急操舵演习。

A.1个月

B.3个月

C.6个月

D.9个月

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JZ—7型制动机七步闸第五步检查有哪些内容?

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