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问题 填空题

已知四种元素A、B、C、D，其中A是地壳中含量最多的金属元素组成的物质；B是空气中含量第二的物质；C是A、B两元素组成的化合物；D是相对分子质量最小的氧化物．分别写出四种物质的化学式：

A：______B：______C：______D：______

答案

地壳中含量最多的金属元素是铝，它的化学式为Al；空气中含量第二的物质是氧气，它的化学式为O2；A、B两元素组成的化合物为氧化铝，故C为氧化铝，其化学式为Al2O3；相对分子质量最小的氧化物是水，其化学式为H2O．

故选Al；O2；Al2O3；H2O．

单项选择题

In the United States and in many other countries around the world, there are four main ways for people to be (91) about developments in the news: newspapers, magazines, and radio or television news broadcasts. A person may use one, or all, of these (92) for information. Each source is useful in its (93) way. Newspapers and magazines can give much information about a particular event. They may (94) some history of the event, some of its (95) , some of its effects, or perhaps give an (96) or point of view on a particular development. Radio and television can help a person to be well informed about what is happening each day. It is also (97) to listen to radio or watch TV (98) do something else at the same time. Many people can listen to the news on their car radio while driving (99) . For the student of English as a foreign language, an English language newspaper may be the most helpful news source that will also (100) you practice in reading English.
Most daily English language newspapers are not very hard to find. They are interesting and helpful in many (101) . In some of them, you may be able to find news about your (102) country. You will find news and information about important national and international political (103) . (104) what you are interested in, you can probably find something in the newspaper about it. A(n) (105) in the newspaper may help you solve a problem. Other stories may be about good movies, concerts, or TV shows.
Usually, an English language newspaper has several (106) or parts. Each part of the newspaper (107) stories about different kinds of news. Some sections have a lot of advertisements which may be helpful if you want to save money. By reading the advertisements, you may find something you want (108) sale. Or you may find that two stories are advertising the (109) thing, but at one store the price is lower. Other sections may have (110) advertisements or have only a specific type of advertisement to interest the people.

A．composes

B．contains

C．holds

D．receives
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单项选择题

下列哪项不是个案工作方法在贫困救助领域运用时应注意的问题？（）

A.主动接触贫穷者

B.注重对服务对象的引导

C.注重差异化服务

D.正式救助对象实质需奥的满足

E.注重资源协调
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