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  3. While western governments worry over the threat of Ebola, a more pervasive but far less harmful【C1】______ is spreading through t

While western governments worry over the threat of Ebola, a more pervasive but far less harmful【C1】______ is spreading through t

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问题     While western governments worry over the threat of Ebola, a more pervasive but far less harmful【C1】______ is spreading through their populations like a winter sniffle: mobile personal technology.
    The similarity between disease organisms and personal devices is【C2】______. Viruses and other parasites control larger organisms,【C3】______ resources in order to multiply and spread. Smartphones and other gadgets do the same thing,【C4】______ ever-increasing amounts of human attention and electricity supplied【C5】______ wire umbilici.
    It is tempting to【C6】______ a "strategy" to both phages and phablets, neither of which is sentient. 【C7】______, the process is evolutionary, consisting of many random evolutions, 【C8】______  experimented with by many product designers. This makes it all the more powerful.
    Tech【C9】______ occurs through actively-learnt responses, or "operant conditioning" as animal be haviourists call it. The scientific parallel here also involves a rodent, typically a rat, which occupies a【C10】______ cage called a Skinner Box. The animal is【C11】______ with a food pellet for solving puzzles and punished with an electric shock when it fails.
    "Are we getting a positive boost of hormones when we【C12】______ look at our phone, seeking rewards?" asks David Shuker, an animal behaviourist at St Andrews university, sounding a little like a man withholding serious scientific endorsement【C13】______ an idea that a journalist had in the shower. Research is needed, he says. Tech tycoons would meanwhile【C14】______ that the popularity of mobile devices is attributed to the brilliance of their designs. This is precisely what people whose thought processes have been【C15】______ by an invasive pseudo-organism would believe.
    【C16】______, mobile technology causes symptoms less severe than physiological diseases. There are even benefits to【C17】______ sufferers for shortened attention spans and the caffeine overload triggered by visits to Starbucks for the free Wi-Fi. Most importantly, you can【C18】______ the Financial Times in places as remote as Alaska or Sidcup. In this【C19】______, a mobile device is closer to a symbiotic organism than a parasite. This would make it【C20】______ to an intestinal bacterium that helps a person to stay alive, rather than a virus that may kill you.
【C5】
选项 A、with
B、over
C、to
D、via
答案D
解析 此处supplied短语做后置定语修饰electricity，意为“______电线枢纽提供的电力”。由此判断填入一个表示“通过”的介词，故排除A．with和C．to。over和via都有“通过”的意思，但是via更强调凭借某种途径，over强调“越过……”，故D．via符合题意，为正确答案。
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