挑战习题
1/5单选题
难度:

1.方程(x-2)(x+3)=0的解是( )
A
B
C
D
提示1:
IOaWueeoi+WIqeeUqOS4pOaVsOebuOS5mOenr+S4ujDvvIw=
提示2:
IOS4pOWboOW8j+S4reiHs+WwkeacieS4gOS4quS4ujDovazljJbkuLrkuKTkuKrkuIDlhYPkuIDmrKHmlrnnqIvmnaXmsYLop6M=
提示3:
IOino+S4gOWFg+S6jOasoeaWueeoiy3lm6DlvI/liIbop6Pms5U=
正确答案:RA==
PGRpdj7op6PvvJrvvIh4LTLvvInvvIh4KzPvvIk9MO+8jDxicj7lj6/lvpd4LTI9MOaIlngrMz0w77yMPGJyPuino+W+l++8mng8c3ViPjE8L3N1Yj49Mu+8jHg8c3ViPjI8L3N1Yj49LTMuIDxicj7mlYXnrZTmoYjkuLrvvJp4PHN1Yj4xPC9zdWI+PTLvvIx4PHN1Yj4yPC9zdWI+PS0zPC9kaXY+