英语六级

单选题

A．By searching the network siteS.
B．By examining the cookies on user computers.
C．By sending emails to the users.
D．By consulting computer companies.

参考答案：B进入在线模考
How do commercial data collectors on the Internet track users' information?  B。

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1

A．Cell phones of poor quality.
B．Annoying ads.
C．Spring sandals of outdated style.
D．Excessive morning news.

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2

A．It will be rooted out in a few years.
B．It benefits net users in many ways.
C．It invades the privacy of net users seriously.
D．It exists in almost all the websites.

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3

A．The mih'tary sector.
B．The IT sector.
C．The housing sector.
D．The financial sector.

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