方程两边同乘x(x-1),
得:4(x-1)+x=x(x-1),
整理解得:x1=3+5,x2=3-5,
经检验x1=3+5,x2=3-5是方程的解.
胞络属()络于胞中,胞脉者系于
A.脾、肝
B.心、肾
C.脾、肾
D.心、肝
E.督、带
阅读下面代码 public class Jixiangwu { public static void main(String[] args) { String[] stars={"贝贝","晶晶","欢欢","迎迎","妮妮"}; System.out.println("你抽取的奥运吉祥物是"+ "“"+stars[(int)(stars. ______ *Math.random())]+"”"+"!"); } } 为保证程序能正确执行,程序中下画线处应填写的是
A.long
B.width
C.wide
D.length