根据我国《保险法》的规定，无须征得保险人同意即可由投保方背书转让的是()。A．农业保

下列各组物质中，前者属于金属单质后者属于氧化物的组合是[ ]

A．铜绿和液态氧

B．氦和一氧化碳

C．碘和氯化钾

D．汞和冰

阅读理解。

     Five years ago, David Smith wore an expensive suit to work every day. "I was a clothes addict (有瘾的

人)" he jokes."I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled (皱的)." 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. 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 a business consultant (顾问) 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 Company, 85 percent of

employers believe that casual dress has a negative influence on morale (士气). Only 4 percent of employers

hold the opinion 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."

1. David Smith refers to himself as having been"a clothes addict," in the first paragraph 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

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

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. support casual office wear.

4. According to this passage, which of the following statements is TRUE?

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

B. Dress-down has become an everyday phenomenon (现象) since the early 1990s.

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

D. Many workers want to wear casual clothes to attract people.

5. In this passage, the following strong points of casual office wear are mentioned EXCEPT ________.

A. saving employees' money

B. making employees more attractive

C. improving employees' motivation (动机)

D. making employees happier

据《国内投资民用航行业规定》，允许民营资本可以投资除空中交通管制系统外的所有民用航空领域，同时要求国航、东航、南航三大航空集团和主要大城市机场需保持国有或国有控股地位。据此回答27—29题。

27.允许民营资本可以投资除空中交通管制系统外所有民用航空领域，体现了市场经济的( )

①平等性 ②竞争性 ③法制性 ④开放性

A.①④ B.①② C.①②③ D.①②④

28.要求国航、东航、南航三大航空集团和主要大城市机场需保持国有或国有控股的地位。这是因为( )

A.国有经济是国民经济的主体

B.每个行业都必须坚持国有资本占优势

C.国有 经济在国民经济中起主导作用，主要体现在量上

D.关系国计民生的重要行业和关键领域，国有经济必须占支配地位

29.要求国航、东航、南航三大航空集团和主要大城市机场需保持国有或国有控股的地位，企业就具有明显的公有性，这里体现的哲学道理是( )

A.事物的性质主要是由主要矛盾所规定的

B.事物的性质是由主要矛盾和次要矛盾共同规定的

C.事物的性质主要是由矛盾的主要方面所规定的

D.事物的性质是由矛盾的主要方面和次要方面共同规定的

用FrontPage制作网页时，下列说法正确的是（）

A、使用"格式刷"工具，可复制动态效果

B、用复制的方法可以建立多个悬停按钮

C、网页中不能添加背景音乐

D、网页中可以用表格组织内容

某公司进口一台设备配件，请根据所提供的单据，完成相关的判断题。

该批货物从英国启运，经韩国转船后运抵我国。（）