A.3x-y+4=0 B.3x+y+4=0 C.3x+y-4=0 D.3x

题库2022-08-02  8

问题 A.3x-y+4=0B.3x+y+4=0C.3x+y-4=0D.3x-y-2=0

选项 A.3x-y+4=0
B.3x+y+4=0
C.3x+y-4=0
D.3x-y-2=0

答案 D

解析
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