单项选择题

What can be inferred from "technology is a two-edged sword" in Paragraph 1

A．Patients can benefit a lot from medical technology.
B．People are suffering from misuse of medical technology.
C．We should be aware of the danger brought by medical technology.
D．Despite treatment improvement, technology can be harmful.

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单项选择题

Now, the most effective form of advertising is ______.

A．a 30-second prime-time TV ad
B．a 30-second prime-time online advertising
C．online advertising
D．most expensive TV ad

单项选择题

Which of the following is nor included in Google's new service which extends AdSense

A．Advertisers will be able to select the specific sites where they want their ads to appear.
B．Advertisers pay on the basis of the number of people who browse the ad.
C．Advertisers are offered ads with animation.
D．Advertisers will be advised on the contents.