In talks about reducing the nation’s exploding health care costs, the word "rationing" strikes fear into the hearts of both pati

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问题     In talks about reducing the nation’s exploding health care costs, the word "rationing" strikes fear into the hearts of both patients and doctors. Why, many people ask, shouldn’t the richest country in the world spend【C1】______is necessary to protect and preserve its citizens’ health? This is the philosophy【C2】______which our health care system operates, and it【C3】______to bankrupt us without【C4】______improving our health. In more【C5】______than many people realize, doing more medically can be worse than doing less. Too【C6】______, costly, overly aggressive medical care causes more pain and suffering than if nothing had been done at all.
    Our【C7】______and demands of health care must change, and we must【C8】______with the incentives for tremendous waste that are now【C9】______into the system. A growing body of research【C10】______that about 30 percent of what is now spent on medical tests and procedures is wasteful,【C11】______to benefit anyone except those whose pockets are【C12】______as a result.【C13】______this waste is curbed, rationing will almost certainly become a reality in the not-too-distant future.
    Patients don’t want to be【C14】______a test or treatment that they or their doctors believe could improve their health or save their lives — no matter what the【C15】______. But【C16】______faith in a procedure’s【C17】______is not enough. Each medical decision should be based on the best available evidence,【C18】______with the doctor’s best clinical judgment about what is right for each patient. Only then can we【C19】______the current practice of doing whatever is possible, no matter what the【C20】______of success.
【C13】

选项 A、Unless.
B、As
C、Lest
D、Since

答案A

解析 本题考查上下文逻辑。本句作为段结尾句,作结指出要遏制浪费、实现定量。空格处填入状语从句连词。从句部分说明:这样的浪费被遏制,主句部分说明:定量几乎肯定会变为一纸空谈;主从句间存在“如果不……将会……”的条件一结果关系,unless符合文意。
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