一个设计单位在项目决策通过后即介入项目，则其首先开始的工作是()。A．设计准备 B．

Penfium CPU采用了很多且分布在不同的位置上的地线引脚GND和电源引脚VCC的目的主要是( )。

A．为了方便连线

B．为了方便提供电源

C．因为需要的电源线越来越多

D．为了散热

团体保险对每个被保险人的保险金额按照统一的规定计算，其目的主要在于（）。

A.消除逆选择的行为

B.降低管理成本

C.便于保险产品的管理

D.有效保护被保险人的利益

阅读理解。

                             Stop  Spam

   When I first got an e-mail account ten years ago, I

received communications only from family, friends, and

  colleagues. Now it seems that every time I check my e-mail, I

have an endless series of advertisements and other

  correspondence that do not interest me at all. If we want e-mail

to continue to be useful, we need specific laws that make

spamming(发送垃圾邮件)a crime.

        If lawmakers do not do something soon to prohibit spam,

  the problem will certainly get much worse. Computer programs

  allow spammers to send hundreds of millions of e-mails almost

  instantly. As more and more advertisers turn to spam to sell

  their products,  individual(个人的) e-mail boxes are often

  flooded with spam e-mails. Would people continue to use e-mail

   if they had to deal with an annoying amount of spam each time?

        This problem is troubling for individuals and companies as

  well. Many spam e-mails contain computer viruses that can

   shut down the entire network of a company. Companies rely on

  e-mail for their employees to communicate with each other.

  Spam frequently causes failures in their local communications

  networks, and their employees are thus unable to communicate

effectively. Such a situation results in a loss of productivity and

requires companies to repeatedly repair their networks. These

computer problems raise production costs of companies, which

are, in the end, passes on to the consumer.

   For these reasons, I believe that lawmakers need to

legislate(立法) against spam. Spammers should be fined,  and

perhaps sent to prison if they continue to disturb people. E-mail

is a tool which helps people all over the world to communicate

conveniently, but spam is destroying this convenience.

1. What does the underlined word "correspondence" in theParagraph 1 probably mean?      

A. messages                        

B. ideas

C. connections                  

D. programs

2. According to the text, what is the major cause of the flooding spam?     

A. Companies rely on e-mail for communications.

B. More people in the world communicate by e-mail.

C. Many computer viruses contain spam e-mail.

D. More advertisers begin to promote sales through spam.

3. According to Paragraph 3, who is the final victim of spam?   

A. The business.    

B.The advertiser.

C. The employee.    

D.The consumer.

4. What is the purpose of the text?

A. To inform.    

B. To educate.

C. To persuade.    

D. To instruct.

桥梁控制网平差时，按（）方式处理。

A、国家网

B、城市网

C、行业网

D、独立自由网

患者翘二郎腿乘坐汽车时遇急刹车，膝部顶撞前车位导致左髋关节疼痛。查体：左髋关节呈屈曲内收内旋位，不能主动活动，被动活动阻力大。左足趾背伸力量明显减弱，左足背痛觉减退。

X线及CT检查发现左髋关节后脱位伴髋臼后缘骨折片，大小约0．5cm×0．9cm×1．2cm，最恰当的处理措施是什么（）

A.麻醉下行手法复位，复位后行皮牵引

B.不用麻醉，直接行手法复位，复位后行皮牵引

C.骨牵引复位

D.皮牵引复位

E.切开复位

F.切开复位、坐骨神经探查术

G.麻醉下行手法复位，早期下地功能锻炼