变压器并列运行的意义是（）A、提高供电可靠性 B、便于变压器检修 C、利于经济运行 D、随

阅读理解。

     Most new people were born in developing countries. These countries are found in much of Africa, South

America and some parts of Asia. In the developed countries of Europe and North America, the population is

growing very slowly. This is because women in these countries have, on average (平均), only one or two

children. In the developing countries, many women have five or more children. In 1950, around one quarter

of the world's population lived in the developed countries. By 2050, these countries will be home to only

around one tenth of the world's people.

     In the developing countries, more than one billion people are still living below the poverty (贫困) line.

These people do not have enough food to eat and they live in poor housing. Children get little time at school

and people suffer (遭受痛苦) from many kinds of diseases.

     At the beginning of the 21st century, the world's population was around six billion people. The U.N. has

said that the world's population will level off (平稳下降) at 12.5 billion by the year 2100. Other groups think

the world's population will continue to grow, reaching 14 billion before it becomes stable (稳定的), or even

falls.

根据短文内容，回答下列问题。

1. In what areas of the world can developing countries be found?

2. In 1950, what percent (百分比) of the world's population lived in developing countries? 

3. How can we describe the people who are living below the poverty line?

4. There will be twelve and a half billion people on the earth in 2100, won't there?

5. 将文中画线部分翻译成汉语。 

男，56岁。咳嗽伴痰中带血2周，胸部X线片及CT检查发现右肺上叶周围型结节，痰细胞学检查示：鳞癌可能性大。该患者首选的治疗是（）。

A.免疫治疗

B.手术治疗

C.化学药物治疗

D.介入治疗

E.放射治疗

引起海水运动的主要原因有（）、（）、（）等。

农业生物质资源

下列关于个人住房贷款担保方式的说法，正确的是( )。

A．贷款银行可以根据借款人的情况，要求其同时采用几种贷款担保方式

B．在二手房贷款中，一般由开发商承担阶段性保证的责任

C．在所抵押的住房取得房屋所有权证并办妥抵押登记后，抵押加阶段性保证人仍然负有保证责任

D．国家重点建设债券可以作为质押担保的质物

E．在贷款期间，经贷款银行同意，借款人可根据实际情况变更贷款担保方式