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  3. A study found that the radiation from CT scans—the tests regularly used to【C1】______internal injuries or signs of cancer—is like

A study found that the radiation from CT scans—the tests regularly used to【C1】______internal injuries or signs of cancer—is like

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问题     A study found that the radiation from CT scans—the tests regularly used to【C1】______internal injuries or signs of cancer—is likely【C2】______for 2 percent of cancer cases in the United States.
    【C3】______lots of Americans undergo CT scans, that research is unlikely to【C4】______in doctors’ offices: Two-thirds of patients in a new JAMA study reported 【C5】______nothing of the risks of the diagnostic procedure. 【C6】______, 17 percent felt like they played an active role in a discussion【C7】______whether this diagnostic test was the best path forward.
    "Our study indicates that most decisions to undergo outpatient CT are【C8】______by physicians and risk communication is【C9】______," a team of researchers led by University of Colorado’s Tanner Caverly writes. "The risk communication that took place had limited【C10】______: respondents who recalled discussing the benefits and risks of imaging did not have better 【C11】______."
    Would a conversation about the【C12】______risks have made a difference? Caverly’s team asked a few other questions that suggest it would: Patients undergoing the scan have little idea about the radiation【C13】______One-quarter self-identified radiation as a risk of a CT scan; 37 percent were able to identify CT scans as having a higher level of radiation【C14】______a chest x-ray.
    There’s a growing movement in medicine right now to【C15】______on unnecessary treatment or【C16】______of care. Much of this has been led by a group called Choosing Wisely, which has【C17】______ with dozens of medical societies to come up with lists of 【C18】______that doctors themselves don’t think they ought to be using.
    One of their key messages is that more care isn’t【C19】______better, all medicine comes with some level of risk. That message does not,【C20】______, seem to be delivered in the doctor’s offices studied here.
【C6】
选项 A、Meanwhile
B、However
C、Therefore
D、Subsequently
答案A
解析 空格后意为“17％的病人认为他们在讨论这项诊断是否是最好的诊断途径中起到积极作用”，这和上句讲的“他们没有听说CT扫描诊断过程存在的风险”属并列关系，故用A项Meanwhile“同时”。
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