判定档案价值要分析其特征，文件形成时间属于（）。A、内容特征B、形式特征C、价值特征

阅读与表达。

    November 24, 1859 was a special day in London. On the day, many Londoners rushed to a bookstore

to buy a book that was just published. The first printing of 1,250 copies sold out on the first day.

    The popular book was The origin of Species (《物种起源》) by British naturalist Charles Darwin

(1809-1882). In the book, Darwin argued that different forms of life could change over time because of

natural selection. This means that only those who are best suited to their environment will live and reproduce.

Darwin supported his arguments with examples he found during his around-the-world trip in the 1830s.

    The book laid the foundation of modern biology. It changed how other scientists understood the

appearance of life on Earth.

    A hundred and fifty years later, Darwin's theory (理论) of natural selection still has great influence in

the world of science. But some people have a question: since medicine and modern life have made people

healthier, are we still evolving (进化) by natural selection?

    The answer is yes, according to Stephen Sterns and his team of Yale University researchers. They did

a study on 2,238 women in the US. They found that shorter, heavier women have more children then

thinner, taller ones. This trend (趋势) runs among their female children and grandchildren. So if this

continues, women in 400 years will be about 2cm shorter and a kilo heavier.

    Sterns' findings are supported by other scientists. For example, John Hawks at the University of

Wisconsin, US and his team believe they have found nearly 2,000 gene variations (基因变异) in modern

humans. Those variations allow people to drink milk, fight disease and improve brain development.

1. Was The origin of Species a popular book? 

2. When was the book published?

3. What does natural selection mean?

4. Why does the writer introduce Sterns' findings in the passage?

5. Why is Darwin's theory of natural selection important? 

某建设工程的可行性研究报告表明，虽然从净现值、内部收益率指标看是可行的，但敏感性分析的结论是对投资额、产品价格、经营成本均很敏感，因而决定不投资建造该建设工程，这一对策是( )。

A．风险回避

B．风险转移

C．风险自留

D．损失控制

下列选项中，只能由法人享有的民事权利是( )。

A．地役权

B．荣誉权

C．肖像权

D．名称权

亚胺类属于

A．直接致癌物

B．前致癌物

C．近致癌物

D．助致癌物

E．终致癌物

宋朝的朱熹，曾经给《论语》做过注释，可是假如当孔子正在跟颜回、子路他们谈话的时候，朱熹闯了进去，管保他们在讲什么，他是一句也听不懂的。不光是古代的话后世人听不懂，同一种语言在不同的地方也经历着不同的变化，久而久之也会使这个地方的人听不懂那个地方的话，形成许许多多方言。
这段话主要支持了这样一种观点，即( )。

A．由于语言不通，朱熹对《论语》的注释不可能是完全正确的
B．不同的语言、方言在很大程度上影响了人们的沟通和交流
C．在不同的历史时期或不同的地区，语义语音的变化是非常显著的
D．孔子、颜回和子路讲的方言和朱熹讲的方言是完全不同的