Experts suggest using a different password for every website you visit, and Changing the password every few months. It takes trouble to keep them in mind,but it’s well worth the effort. Be(21)with your passwords and make it difficult for someone to enter your accounts. The more(22)you make your password, the more difficult it is for someone else to figure(23). Use privacy setting(设置)on social websites to restrict entry into your personal information and limit the(25) of private information you share. Even seemingly innocent information you expose about yourself could be used against you. I once read about a burglary(入室盗窃).It(25)that the thieves selected that particular home by(26)a Facebook message.

Information on Internet has made it easier for thieves to steal any information about you. Never(27)your full birth date. Never respond to e-mails delivering personal or financial information. Do not freely offer personal information to anyone (28)you are certain who you are dealing with. (29) the necessary (预防措施)is the best way to(30)you and your personal information stay protected.

21、()

互联网与其他销售渠道不同。

不是所有的产品在互联网上都能卖得好。

这些公司的业务重点主要是销售队伍自动化。

好的计划是商业成功的第一步。

从本质上讲，这就是一种网上支付的方法。

(71 ) [Many firms have found that attracting the college marker is not a simple task.] (72) [College students are somewhat of a paradox—students are easy to find but hard to reach.] For example, (73 ) [many college college students not be reached through traditional advertising media because they have little spare time.] One promotion executive recommends that firms seeking this because they have little space time. One promotion executive recommends that firms seeking this market utilize on-campus advertising, promotions, magazines targeted specially to college students, and sports sponsorships.(74) [Word-of-mouth communication among student s and displays in college stores also represent unique opportunities in this market.] Word-of-mouth is crucial due to the close social interaction among college students.

(75) [The college store represents an important opportunity due to the homogeneous nature of the college marker:]“The firm is guaranteed that walk-in traffic is the audience it wants to reach.”

He can get help via email or a list of to frequently______(ask) questions, but he wants a live person to assist him.

The fewer clicks______(need) to order, the better.

If having one form of live support is good, having many______(choose) from is better.

Electronic signatures are_______(become)more acceptable in global transactions.