用熔点法判断物质的纯度，主要是观察（） A.初熔温度 B.全熔温度 C.熔程长短 D

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．opinion

B．reason

C．decision

D．belief

填空题

小题1:地球公转的周期是             ，自转的周期是              。

小题2:地图的三要素：            、            、                。

小题3:地球上七分是             ，三分是             。

小题4:世界上最大的岛屿是北美洲的              岛。

小题5:德国科学家魏格纳提出了                假说。

小题6:亚洲大部分地区属于                 气候。

小题7:地球表面积为              亿平方千米。

小题8:纬线指示          方向，经线指示          方向。

小题9:点（30°N，116°E）一定在          半球和         半球。

小题10:等高线向低处凸出表示                     。

业主在监理招标时应以( )的水平作为评定工程监理企业投标书优劣的重要内容。

A．监理费用

B．监理规划

C．监理细则

D．监理大纲

儿童发展可分为生理发展、__________、__________、__________。

8086/8088中断系统可处理（）个中断源。

A.255

B.256

C.128

D.1024