A:no matter what; to much
B:whatever; much
C:no matter what; more
D:whatever; more
若函数y﹦(m+1)x+m2﹣1是正比例函数,则m的值为____
一个平行板电容器充电后,把电源断开,再用绝缘工具把电容器的两个金属板间距拉大一些,这样会使得( )