关于下图四大地理区域优势能源的叙述，正确的是 [ ] A、区域①主要是煤炭和石油

Had they known what was coming next, they　　　second thoughts.

A．may have

B．could have

C．must have had

D．might have had

金属宽展估计不足使侧表面产生（）。

A．耳子

B．划线

C．折迭

D．裂纹

Five years ago, David Smith wore an expensive suit to work every day. “I was a clothes addict.” he jokes. “I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled.” Today David wears casual clothes—khaki pants and a sports shirt—to the office. He hardly ever wears a necktie. “I am working harder than ever.” David says, “and I need to feel comfortable.”

More and more companies are allowing their office workers to wear casual clothes to work. In the United States, the change from formal to casual office wear has been gradual. In the early 1990s, many companies allowed their employees to wear casual clothes on Friday（but only on Friday）.This became known as “dress-down Friday” or “casual Friday”. “What started out as an extra one-day-a-week benefit for employees has really become an everyday thing.” said business consultant Maisly Jones.

Why have so many companies started allowing their employees to wear casual clothes? One reason is that it’s easier for a company to attract new employees if it has a casual dress code.” “A lot of young people don’t want to dress up for work,” says the owner of a software company, “so it’s hard to hire people if you have a conservative（保守的）dress code.” Another reason is that people seem happier and more productive when they are wearing comfortable clothes. In a study conducted by Levi Strauss and Company, 85 percent of employers said that they believe that casual dress improves employee morale（心境，士气）. Only 4 percent of employers said that casual dress has a negative influence on productivity. Supporters of casual office wear also argue that a casual dress code helps them save money. “Suits are expensive, if you have to wear one every day,” one person said. “For the same amount of money, you can buy a lot more casual clothes.”

小题1:David Smith refers to himself as having been “a clothes addict,” because     .

A．he often wore khaki pants and a sports shirt

B．he couldn’t stand a clean appearance

C．he wanted his clothes to look neat all the time

D．he didn’t want to spend much money on clothes小题2:David Smith wears casual clothes now, because     .

A．they make him feel at ease when working

B．he cannot afford to buy expensive clothes

C．he looks handsome in casual clothes

D．he no longer works for any company小题3:According to this passage, which of the following statements is FALSE?

A．Many employees don’t like a conservative dress code.

B．Comfortable clothes make employees more productive.

C．A casual clothes code is welcomed by young employees.

D．All the employers in the U. S. are for casual office wear.小题4:According to this passage, which of the following statements is TRUE?

A．Company workers started to dress down about fifty years ago.

B．Dress-down has become an everyday phenomenon since the early 90s.

C．“Dress-down Friday” was first given as a favor from employers.

D．Many workers want to wear casual clothes to impress people.小题5:In this passage, the following advantages of casual office wear are mentioned EXCEPT     .

A．saving employees’ money

B．making employees more attractive

C．improving employees’ motivation

D．making employees happier

国家发行的金融债券利息免纳个人所得税。（ ）

甲公司和乙公司联合承包了某大型工程的设计和施工任务。甲乙双方在联合协议中约定，双方的利润分成以及债务承担比例均为50％。在工程竣工验收时发现某分项工程质量有问题，虽然经过返工达到使用要求，但还是给建设单位造成了10万元的损失。则建设单位( )。

A．只能向甲公司要求赔偿全部损失

B．只能向乙公司要求赔偿全部损失

C．可以要求甲公司赔偿全部10万元的损失

D．只能要求甲乙各赔偿5万元的损失