问答题
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 Colorados 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? Caverlys 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. Theres 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 dont think they ought to be using. One of their key messages is that more care isnt【C19】______better; all medicine comes with some level of risk That message does not,【C20】______, seem to be delivered in the doctors offices studied here.
【C1】
A．decide
B．detect
C．defend
D．defer
A.【C6】______,
B.'
C.
【C1】
A．decide
B．detect
C．defend
D．defer
