（）标志是为了保证交通安全而对车辆必须加以适当限制的标志。A、禁令 B、警告 C、指

如图所示，足够长的水平传送带A B以的速度匀速向右运动，另有一物体从传送带的右端向左以的速度滑上传送带，水平面光滑，传送带表面粗糙，以下说法正确的是

A．若，物体回到B点的速度

B．若，物体回到B点的速度

C．若，物体回到B点的速度

D．若，物体回到B点的速度

阅读理解

     BELIEVE it or not,   the color of the tie Barack Obama wore to the inauguration  (就职典礼)  is

a hotly debated topic.  The level of public interest in Obama's tie might seem strange but many people

believe his choice will symbolize the type of government he plans to run,   as the color of a politician's tie

is thought to convey ideas of power,   trustworthiness and more.

     Policies of ties

     It may be the least practical item of male dress,   but it is arguably the most expressive. In the UK

and many other countries around the world,   conservative  (保守的 )  politicians may wear a blue tie

and their liberal opponents a red one. In America,   the colors go the other way round. The Republicans

have in recent years become associated with the color red,   and the Democrats with blue. But in spite

of this,   Bush wears blue ties more often than any other color.

     What they mean

     According to Sharon Haver,   editor of focusonstyle. com,   in America the feelings associated with

colors overrule their political significance. "A guy who wants to be regarded as strong and in charge

would wear red,   " Haver says. Unsurprisingly,   the business tycoon Donald Trump is known for

wearing red ties.  But what about blue? According to Haver,   "Blue is a softer color…Look at the sky. 

 It's peaceful and calm and trustworthy."

     Selecting the right tie for the right occasion

     ●Perfect job  interview tie

     Perhaps no other tiewearing occasion is as important as the job interview.  Gilchrist,   the fashion

expert,   advises playing it safe and choosing a conservative one.  Best choices are solids,   stripes or

small patterns. An excellent color is burgundy(深红色) or another serious color. Avoid pink or yellow,  

which suggests that the wearer lacks gravity.

     Pattern ties,   Gilchrist suggests,   should be limited to a maximum of three colors. A striped tie is a

safe choice as this is acceptable to everyone. Last,   Gilchrist recommends saving the expensive "hip"

tie for those applying for glamorous creative jobs.

    ●Datenight tie

     When picking out the right tie for taking a girl out on a date,   spend more time considering color

than pattern. According to studies,   women are attracted to men wearing the color blue,   because blue

gives the image of a "stable,   faithful,   constant,   always there" person. So what is the worst color to

wear on a date? " Flattened caterpillar (毛虫)  yellowgreen,   " according to Gilchrist,  " it will repel both

sexes equally."

1. Why are people interested in the tie that Obama wore to the inauguration?

A. Because they think the tie he wore will enable them to know about his personalities and policies.

B. Because they want to advise him how to select an appropriate tie for such a big occasion.

C. Because they think the tie will tell if he is trustworthy as they expected when he assumes office.

D. Because they believe the tie is an essential part of dressing to a mature politician like Obama.

2. What can we infer about Bush,   the former president,   from the passage?

A. He was probably liberal in his policies when he was in power.

B. He was a Republican when he served as president.

C. He wore only blue ties and had no ties of alternative colors.

D. He wanted to make himself unique by the tie that he wore.

3. The example of "the business tycoon Donald Trump" is given to ________.

A. prove that color reflects people's feelings to a certain degree

B. show that Donald is so wealthy that he can afford expensive ties

C. tell that Donald is physically strong and can handle everything

D. explain that red is a popular color,   especially with businessmen

4. Which of the following statements is TRUE according to the text?

A. Ties can be ignored by politicians since they are the least practical item of male dress.

B. Do choose ties carefully before dating,   because it is the most important occasion.

C. Why to avoid pink or yellow ties in job interviews is that they don't match the atmosphere.

D. The more colorful the tie is,   the more likely you'll get the job you want.

以下所列单据，办理出境货物报检手续时无须提交的是( )。

A．合同
B．发票
C．装箱单
D．提单

关于电光性眼炎，错误的是______

A．潜伏期一般为3～8小时
B．如无感染6～8小时后自行缓解，24～48小时完全消退
C．主要对症处理，减轻疼痛
D．可反复滴用表面麻醉剂
E．可涂抗生素眼膏后包扎双眼