某次考试共有20题,计分标准是:做对第k题得k分(k=1、2、3、4.20),小明做了所有的题,得100分,那
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某次考试共有20题,计分标准是:做对第k题得k分(k=1、2、3、4.20),小明做了所有的题,得100分,那
做错第k题要倒扣k分(k=1、2、3、4.20).小明做了所有的题,得100分,那么小明至多做错多少道题,至少做错多少道题?
做错第k题要倒扣k分(k=1、2、3、4.20).小明做了所有的题,得100分,那么小明至多做错多少道题,至少做错多少道题?
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