x-y+z的相反数是()A.x-y-zB.-x+y-zC.-y+z-xD.x+y+z-数学

题目简介

x-y+z的相反数是()A.x-y-zB.-x+y-zC.-y+z-xD.x+y+z-数学

题目详情

x-y+z的相反数是(  )
A.x-y-zB.-x+y-zC.-y+z-xD.x+y+z
题型:单选题难度:中档来源:不详

答案

依题意得:
x-y+z的相反数是-x+y-z.
故选:B.

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