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  3. If the online service is free then you are the product, technicians say. Google and Facebook make a【C1】________collecting person

If the online service is free then you are the product, technicians say. Google and Facebook make a【C1】________collecting person

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问题     If the online service is free then you are the product, technicians say. Google and Facebook make a【C1】________collecting personal information to help them target their advertisements more【C2】________Free smart-phone apps typically【C3】________all the data they can, such as the person’s location or their【C4】________address book.
    More than ever, individual privacy is【C5】________threat. Julia Angwin, who oversaw a pioneering series of Wall Street Journal articles called "What They Know", starting last year,【C6】________many of the questionable activities that damage privacy—activities that most people know nothing about. Hundreds of unregulated data-agents【C7】________in America, for example, selling personal files to marketing companies. One company runs a fleet of camera—equipped cars that【C8】________the number plates of 1 million vehicles a month, mostly to find those wanted for repossession—【C9】________it sells the data to insurers or private investigators as well.
    Ms Angwin condemns this shadowy business. Her book tracks her attempts to【C10】________it. She gets a credit card using a fake name; she uses a(n)【C11】________search engine and conceals her e-mail and texts; she leaves Linkedln. When she turns off basic web-browsing functions that enable tracking she becomes digitally【C12】________. Amazon items appear to be out of【C13】________and she is unable set up an appointment at an Apple store. "My daughter would stand next to me and laugh while I tried to【C14】________a page and browse through all the【C15】________," she writes.
    Yet "Dragnet Nation" has its【C16】________. It ignores how exciting the【C17】________uses of personal data can be to companies, governments and NGOs. It mixes state scrutiny and privacy-damaging business practices, weakening the study of both. Ms Angwin’s analysis of the problems and【C18】________regulatory remedies is shallow, and her attempts to【C19】________the dragnet eventually become wearisome. Her【C20】________is to have made herself a subject in an experiment to avoid the scrutiny found everywhere. But the real story about the economy of personal information and protecting privacy in an age of big data has yet to be written.
【C5】
选项 A、within
B、towards
C、upon
D、under
答案D
解析 前文提到谷歌和Facebook等搜集个人信息帮助精准定位广告，下一句也提到很多行为damage privacy，说明个人信息及隐私并不安全。D项under有“在(……的影响或过程)中”之意，与threat搭配后表示“遭到威胁”，语义符合。A项within表示“在……里面”，B项towards表示“向，对”，C项upon表示“在……之上”，与threat搭配后均不能表示“遭到”之意，不符合上下文语义。
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