若|m-2|+|n+3|=0,则nm______.
∵m、n满足|m-2|+(n+3)2=0,
∴m-2=0,m=2;n+3=0,n=-3;
则nm=(-3)2=9.
故答案为:=9.
胰性霍乱综合征
A.高渗性腹泻B.吸收障碍性腹泻C.分泌性腹泻D.运动性腹泻E.药源性腹泻
Questions 23~26
A. Step to the side to let other people pass. B. Try to walk in alone. C. Go into the room ahead of others. D. Hold her head high to show confidence.