已知且若,则[x]+[y]等于(其中[x]表示不超过x的最大整数        

已知且若,则[x]+[y]等于(其中[x]表示不超过x的最大整数                        

    A0              B1              C2              D3

答案

B  解析:因为

   所以

    所以

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