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  3. An old saying has it that half of all advertising budgets are wasted—the trouble is, no one knows which half. In the internet ag

An old saying has it that half of all advertising budgets are wasted—the trouble is, no one knows which half. In the internet ag

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问题     An old saying has it that half of all advertising budgets are wasted—the trouble is, no one knows which half. In the internet age, at least in theory, this fraction can be much reduced. By watching what people search for, click on and say online, companies can aim "behavioural" ads at those most likely to buy.
    In the past couple of weeks a quarrel has illustrated the value to advertisers of such fine-grained information; Should advertisers assume that people are happy to be tracked and sent behavioural ads? Or should they have explicit permission?
    In December 2010 America’s Federal Trade Commission(FTC)proposed adding a "do not track"(DNT)option to internet browsers, so that users could tell advertisers that they did not want to be followed. Microsoft’s Internet Explorer and Apple’s Safari both offer DNT ; Google’s Chrome is due to do so this year. In February the FTC and Digital Advertising Alliance(DAA)agreed that the industry would get cracking on responding to DNT requests.
    On May 31st Microsoft set off the row. It said that Internet Explorer 10, the version due to appear with Windows 8, would have DNT as a default.
    It is not yet clear how advertisers will respond. Getting a DNT signal does not oblige anyone to stop tracking, although some companies have promised to do so. Unable to tell whether someone really objects to behavioural ads or whether they are sticking with Microsoft’s default, some may ignore a DNT signal and press on anyway.
    Also unclear is why Microsoft has gone it alone. After all, it has an ad business too, which it says will comply with DNT requests, though it is still working out how. If it is trying to upset Google, which relies almost wholly on advertising, it has chosen an indirect method; there is no guarantee that DNT by default will become the norm. DNT does not seem an obviously huge selling point for Windows 8—though the firm has compared some of its other products favourably with Google’s on that count before. Brendon Lynch, Microsoft’s chief privacy officer, blogged: "we believe consumers should have more control. " Could it really be that simple?
"The industry"(Line 4, Para. 3)refers to
选项 A、online advertisers.
B、e-commerce conductors.
C、digital information analysis.
D、internet browser developers.
答案D
解析 词义句意题。the industry在语篇中是指代前面的出现内容，而前面出现的Microsoft Internet Explorer，Apple’s Safair和Google’s Chrome都是D选项中的“Internet browser developers”。B和C选项文中并未提及，属于无中生有。A选项并非本段中谈论的核心。
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