下列有关动静脉畸形，叙述不恰当的是 A．动静脉畸形是动脉与静脉直接相通，其间无毛细血

阅读对话，选择正确的答案，把序号填在括号里。

Mike: Happy birthday to you, Sarah! This rabbit is for you.   

Sarah: Oh, I like white rabbit very much. Thank you, Mike. Have some juice, please.    

Mike: No, thanks. I like water.     

Sarah: OK. Have some water, please.

1. It is             birthday.[ ]

A. Mike's    

B. Sarah's

2. The gift is a             .[ ]

A. monkey    

B. rabbit

3. It is a              rabbit.[ ]

A. white    

B. black

4. Mike likes             .[ ]

A. juice    

B. water

5. Mike doesn't like            .[ ]

A. juice    

B. water

船员特殊培训的代码是以哪个英文大写字母开头？（）

A、A

B、C

C、B

D、E

阅读理解

     The Internet has led to a huge increase in credit-card fraud. Your card information could even be for

sale in an illegal web site.

     Web sites offering cheap goods and services should be regarded with care.

     On-line shoppers who enter their credit-card information may never receive the goods they thought

they bought. The thieves then go shopping with your card number - or sell the information over the

Internet. Computers hackers have broken down security systems, raising questions about the safety of

cardholder information. Several months ago, 25, 000 customers of CD Universe, an on-line music retailer(零售商), were not lucky. Their names, addresses and credit-card numbers were posted on a Web site

after the retailer refused to pay US $157, 828 to get back the information.

      Credit-card firms are now fighting against on-line fraud. Mastercard is working on plans for

Web - only credit card, with a lower credit limit. The card could be used only for shopping on-line.

However, there are a few simple steps you can take to keep from being cheated.

     Ask about your credit-card firm’s on-line rules: Under British law, cardholders have to pay the first

US $78 of any fraudulent(欺骗性的) spending.

    And shop only at secure sites; Send your credit-card information only if the Web site offers advanced

secure system.

     If the security is in place, a letter will appear in the bottom right-hand corner of your screen. The

Website address may also start https: //-the extra “s” stands for secure. If in doubt, give your credit-card

information over the telephone.

     Keep your password safe: Most on-line sites require a user name and password before placing an

order. Treat your passwords with care.

1. What do most people worry about the Internet according to this passage?

A. A lot of stolen credit-cards were sold on the Internet.

B. Fraud on the Internet.                  

C. Many Web sites are destroyed.    

D. Many illegal Web sites are on the Internet.

2. What is the meaning of “fraud”?

A. Cheating.

B. Sale.

C. Payment.

D. Safety.

3. How can the thieves get the information of the credit card?

A. The customers give them the information.

B. The thieves steal the information from Web sites.

C. The customers sell the information to them.

D. The thieves buy the information from credit-card firms.

4. How many pieces of advice does the passage give to you?

A. Four.

B. Three.

C. Five.

D. Six.

5. You are shopping on the site: http: // www. Shopping. com, and you want to buy a TV set,

    what does this article suggest to do?

A. Order the TV set at once.                    

B. Do not buy the TV set on this site.

C. E-mail the site your credit-card information.

D. Tell the site your password and buy the TV set for you.

企业应该对每个采购品项都给予同样的重视程度。

认为公司提高财务杠杆，就可以增加公司总价值，并降低其加权平均的资金成本，该资本结构理论被称为

A．营业净利理论

B．传统理论

C．净利理论

D．MM理论