某工程施工过程中因某种规格的钢筋临时缺货，施工单位提出采用替代规格钢筋的要求，专业监

肺段隔离症影像学表现为（）

A.肺内孤立结节，无分叶，边缘有毛刺，发病前有发热史

B.肺内孤立结节，内有爆米花样钙化

C.右上叶后段结节，边缘光整，周围有卫星灶，增强扫描结节无强化

D.肺内孤立结节，有分叶和毛刺，远端有胸膜凹陷征

E.左下叶后基底段肿块，CT增强扫描示胸主动脉分支进入肿块

新型消防头盔不具有耐高温性能。

保水剂使用的是高吸水性树脂，它是一种吸水能力特别强的功能高分子材料。无毒无害，反复释水、吸水，因此农业上人们把它比喻为“微型水库”。有机物Ⅰ为一种保水剂，可通过烃A经下列转化生成：

提示：不能稳定存在。

请回答下列问题：

(1)写出A和I的结构简式：A________，I________。

(2)F中官能团的名称为________________。

(3)反应②、⑥和⑦的反应类型：②________反应，⑥________反应，⑦________反应。

(4)M是一种普遍使用的抗生素类药物，它是由2个F分子在一定条件下脱去两个水分子形成的环状酯，写出该反应的化学方程式： _______

______________________________________________________。

(5)D有两种能发生银镜反应且属于链状化合物的稳定同分异构体，请写出它们的结构简式： ____________________________________________

Research shows that much of  our predisposition (倾向) towards determination, sociability and self­control and sense of purpose is in our genes. In  fact, our DNA plays a bigger role in influencing these traits (characteristics) than our upbringing (儿童期的教养) and the company we keep.  Taken together, these aspects of personality can make the difference between success and failure, say the Edinburgh University researchers.

They questioned more than 800 pairs of twins about  their attitudes to life to tease apart the influences of nature  and nurture. Comparing identical twins, who share all their  DNA and their upbringing, with non­identical twins, who  have a shared background but are no more genetically alike  than other brothers and sisters, is a technique often used  by researchers to quantify the influence of genetics.

The results, published in the Journal of Personality,  showed that genes play a much bigger role than lifestyle,  with self­control particularly etched (铭刻) into our DNA.

Our genes also largely determine how determined and persistent we are. This is important in terms of success, as someone who refuses to give up is more likely to achieve their dreams than someone_who_throws_in_the_towel_at_the_first_hiccough.

Researcher Professor Timothy Bates said, “Ever since the ancient Greeks, people have debated the nature of a good life and the nature of a virtuous life. Why do some people seem to manage their lives, have good relationships and cooperate to achieve their goals while others do not? Previously, the role of family and the environment around the home often controlled people's ideas about what affected psychological well­being. However, this work emphasizes a much more powerful influence from genetics.”

However, those who haven't been dealt a helpful hand of genes shouldn't be too depressed. The professor says a sense of purpose is the key and advises those who are eager for success to focus their thoughts on making a difference.

小题1:What does the result of the research indicate?

A．Our DNA is the only factor to decide our traits.

B．Our DNA plays a decisive role in achieving success.

C．Education plays little part in the formation of our character.

D．Society has little effect on us in our personality.小题2:The underlined part in Paragraph 4 refers to someone   who ________.

A．is born successful

B．determines to make a difference

C．makes great effort

D．admits defeat easily小题3:Timothy Bates mentions the ancient Greeks in order to   indicate that ________.

A．some people can live a good life because they can manage their lives

B．people haven't made it clear yet what is the key personality trait to be a success

C．in ancient Greece the role of family and the environment was ignored

D．the relationship between personality and success has always been people's concern小题4:According to the passage, the key personality trait is ________.

A．determination　　　　　　

B．kindness

C．politeness

D．sociability小题5:What is the best title for the passage?

A．How do people work hard?

B．Why can some people succeed?

C．DNA determines success or failure.

D．Several factors determine personality.

预付备料款的扣回可以从未施工工程尚需的主要材料及构件的价值( )备料款数额时起扣，竣工前全部扣清。

A．大于

B．相当于

C．小于

D．无关