gif" border="0"> /a>

于是,建立一个坐标系,f为原点,b为{-1,0},c为{1,0},a{x,2},那么p的

there is originally no border, but setting a background on

"/>gif" border="0"/>

in chrome and in edge, theborder-radiusis always0.

高中数学谜题解答之——同底的指对函数有几个交点?

800_438

"/>tinypic.com/27zyz9t.gif" border="0"/>

"/>gif" border="0"/>

"/>dreamies.de/img/343/b/o67jlt9q7h4.gif" border="0"/>

"/>gif" border="0"/>

532_170

"/>gif" border="0"/>

"/>gif" border="0"/>

according to chrome devtools, there is noborderin either case, e

the thumbborder-radiusin firefox.

"/>parsskin.com/zibasazi/other/4/88.gif" border="0"/>