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  3. Google already has a window into our souls through our Internet searches and it now has insight into our ailing bodies too. The

Google already has a window into our souls through our Internet searches and it now has insight into our ailing bodies too. The

admin2020-02-26  8
问题     Google already has a window into our souls through our Internet searches and it now has insight into our ailing bodies too. The Internet giant is using its vast database of individual search terms to【C1】______the emergence of flu up to two weeks【C2】______government epidemiologists. Google Flu Trends uses the【C3】______of people to seek online help for their health problems. By tracking【C4】______for terms such as "cough", "fever" and "aches and pains", it claims to be able to【C5】______estimate where flu is【C6】______.   
    Google tested the idea in nine regions of the US and found it could accurately predict flu【C7】______between 7 and 14 days earlier than the federal centres for disease control and prevention. Google hopes the idea could also be used to help【C8】______other diseases. Flu Trends is limited【C9】______the US. Jeremy Ginsberg and Matt Mohebb. Two software engineers【C10】______in the project, said that【C11】______in Google search queries can be very 【C12】______. In a blog post on the project they wrote: "It turns【C13】______that traditional flu surveillance systems take 1 to 2 weeks to collect and【C14】______surveillance data but Google search queries can be【C15】______counted very quickly. By making our estimates【C16】______each day, Flu Trends may provide an early-warning system for outbreaks of influenza." They explained that【C17】______information health would be kept【C18】______. "Flu Trends can never be used to identify individual users【C19】______we rely on anonymised, aggregated counts of how of ten certain search queries【C20】______each week."
【C18】
选项 A、essential
B、confidential
C、substantial
D、potential
答案B
解析 考查形容词辨析。空格所在句的意思是：他们还解释说，私人的健康信息会被______。B．confidential意为“秘密的，机密的”，keep confidential意为“保守秘密”，符合题意，为正确答案。其他三项essential意为“实质的，本质的”，substantial意为“坚固的，实质的”，potential意为“潜在的”，均不符合题意。
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