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方程 x2+mx-1=0的两根互为相反数,则m的值为A.-1B.0C.D.2
试题详情
方程 x
2+mx-1=0的两根互为相反数,则m的值为( )
A.-1
B.0
C.
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UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
D.2
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