问题 单项选择题

高效价的抗Jo-l抗体为下列何种疾病所特有()。

A.重症肌无力

B.SLE

C.RA

D.SS

E.MCTD

答案

参考答案:A

单项选择题 A1/A2型题
阅读理解

The Internet has led to a huge increase in credit-card(信用卡) fraud. Your card information could even be for sale in an illegal Web site(网站).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 bought. The thieves then go shopping with your card number—or sell the information over the Internet.

Computers hackers(黑客) have broken down security(安全) systems, raising questions about the safety of cardholder information. Several months ago,25 000 customers of CD Universe, an on-line music retailer(批发商),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 are responsible(对……负有责任的) for the first US $78 of any fraudulent 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 Web site address may also start with https://—the extra “s” stands for secure. If in doubt, give your credit-card information over the telephone.

Keep your password safe: Most online sites require a user name and password before placing an order. Treat your passwords with care.

小题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.小题2:What is the meaning of “fraud”?

A.cheating

B.sale

C.payment

D.safety小题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. Both A and B.

小题4:How many pieces of advice does the passage give to you?

A.Four.

B.Three.

C.Five.

D.Six.