A、B、C、D、E、F、G为常见的物质,其中B、E、G属于单质,反应②是炼铁工业

题型:推断题

问题:

A、B、C、D、E、F、G为常见的物质,其中B、E、G属于单质,反应②是炼铁工业中的主要反应,下图是它们之间的相互转化关系。请回答:

(1)A物质的化学式________。

(2)写出反应②的化学方程式________________________________________________;C物质固态时的名称________,该固体物质在实际生活中的一种用途是________________。

(3)写出反应③中生成红色固体的化学方程式________________________________。

(4)上图转化中产生无色气体G的原因是______________________________________,写出物质G和A在加热条件下反应的化学方程式________________________________.

考点:物质的推断化学反应方程式的书写
题型:推断题

Hundreds of years ago, news was carried from place to place by people on foot or by horse. It took days, weeks and sometimes months for people to receive news. Now it is possible to send words and pictures around the world in seconds(秒). Billions of people learn about news stories of their own country and all over the world every day, either by watching TV or reading newspapers.

Newspapers have been an important part of everyday life since the 18th century. Many countries have hundreds of different newspapers. How do newspaper editors(编辑) decide which news stories to print (印刷)? Why do they print some stories and not others? What makes a good newspaper story?                                                           

Firstly, it is important to report new stories. TV stations can report news much faster than newspapers. Yet, newspapers give more about the same story. They may also look at the story in another way, or they may print completely (完全地) different stories to those on TV.

Secondly, a news story has to be interesting and unusual. People don’t want to read stories about everyday life As a result, many stories are about some kind of danger and seem to be "bad" news. For example, newspapers never print stories about planes landing safely, instead they print stories about plane accidents.

Another factor(因素) is also very important in many news stories. Many people are interested in news in foreign countries, but more prefer to read stories about people, places and events (事件) in their own country. So the stories on the front page in Chinese newspapers are usually very different from the ones in British, French and American newspapers.

小题1: According (根据) the passage, how do people learn about news stories in the world now?

A.They carry news stories and tell others from place to place oh foot or by horse.

B.They tell each other what they have seen with their eyes.

C.They watch TV or read newspapers.

D.They listen to the radio every day.小题2:  The difference between newspaper stories and TV news reports is that    .

A.people can learn more about the same news story from a newspaper

B.people can read the news story more quickly in a newspaper

C.people can read news stories in other countries

D.people can read news’ stories about their own country小题3: To make a good newspaper story, how many factors does the passage talk about?

A.Two.

B.Three.

C.Five.

D.Six.小题4:According to the passage, which of the following can you most possibly watch on TV?

A.You often play football with your friends after school.

B.Your teacher has got a cold.

C.A tiger in the city zoo has run out and hasn’t been caught.

D.The bike in the front of your house is lost.小题5:Which of the following is Not True of this passage?

A.News stories on the front page of every country are always the same.

B.People like to read interesting and unusual news.

C.Not only TV but also newspapers can help people to learn what is happening around the world.

D.Newspapers have been an important part of everyday life for more than three hundred years.

题型:推断题

患者女性,15岁,以“面部红斑、双手关节肿痛伴间断发热2年”来诊。查体:体温38.7℃,面颊及鼻部见蝶形红斑,双下肢散在小出血点,双眼睑水肿,心肺无异常,双手关节肿胀。化验:血常规白细胞4.0×109/L,血红蛋白85g/L,血小板6.5×109/L尿常规尿蛋白2+;RF60U/ml。

该患者可能的诊断首先考虑

A.皮肤过敏

B.类风湿关节炎

C.特发性血小板减少性紫癜

D.系统性红斑狼疮

E.慢性肾炎

题型:推断题

焦炉的传热方式有()。

A、传导传热

B、对流传热

C、辐射传热

题型:推断题

物业管理服务的沟通,是两个人之间交流信息、观点和理解的过程。

题型:推断题

为进行公路的日常养护而建立的基层养护大为是()

A.公路养护区

B.公路养护局

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