2011年中国医学科学院药物研究所研究人员发现了一种新物质,该物质被CAS(化学

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问题:

2011年中国医学科学院药物研究所研究人员发现了一种新物质,该物质被CAS(化学物质登录号)登记为第6000万种已知结构的新物质M(化学式为C19H15N4FSO2)。下列说法错误的是       [ ]

A.M由六种元素组成    

B.M是有机化合物  

C.M中含有氧分子    

D.化学为人类的发展作出了巨大贡献

考点:化学式的写法和意义有机化合物和无机化合物
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叶酸缺乏的巨幼细胞性贫血的诊断标准是什么?

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阅读理解。

     Sometimes people say that they see strange flying objects (物体) high up in the sky. People call these

strange objects “Unidentified Flying Objects (UFOs)".

     Dennis Bardens wrote an article. In it, he told us that he once saw a UFO himself. He had dinner one

night with a friend near Tripoli, Libya. After dinner Dennis with his friend walked across a yard (院子) to

his room.He noticed that the"moon"looked strange that night. But it wasn’t the moon. He saw the object’s

light was moving. It seemed to be an object like a big plate. In some ways it looked like smoke with light

on it.But it wasn’t smoke because it didn’t change its shape (形状).When the object was nearer,he noticed that its bottom (底部的) part was brighter than the top. The bottom part was yellow and the top was red. Then the object suddenly turned away and left, moving very fast.

     On a later day, Dennis talked to other people about it, and he found some people also saw it. They all described (描述) it in the same way.

根据短文内容判断正误,正确的在括号里填A, 错误的在括号里填B。

( )1. Dennis Bardens wrote an article about a UFO.

(     )2. The object looked like smoke because it often changed its shape.

(     )3. Dennis saw some people in the object looking at him.

(     )4. The object’s bottom part was yellow and the top was red.

(     )5. Dennis was the only man who saw the UFO that night.

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认真看图画,可以得出的正确观点是

[ ]

A.承担责任伴随获得回报的权利

B.承担责任必然可以得到经济利益

C.承担责任一定会获得客观公正的评价

D.承担责任就必须牺牲个人利益

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确定湿蒸汽状态的条件是( )。

A.压力与温度

B.压力或温度

C.压力与比容

D.温度或比容

题型:选择题

国家创制法律的基本形式是()。

A.修改

B.制定

C.颁布

D.认可

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