A.對(duì)任意實(shí)數(shù),都有p1=p2 B.對(duì)任意實(shí)數(shù),都有p1
2 C.對(duì)任意實(shí)數(shù),都有p1>p2 D.對(duì)任意實(shí)數(shù),都有p1≠p2