题目内容
A.10
B.12
C.14
D.16
非零实数x,y,z成等差数列,x+1,y,z和x,y,z+2都是等比数列,则y为
[ ]
A.16 B.14 C.12 D.10
非零实数x、y、z成等差数列,x+1、y、z与x、y、z+2分别成等比数列,则y等于
A.10
B.12
C.14
D.16
非零实数x、y、z成等差数列,x+1、y、z与x、y、z+2分别成等比数列,则y等于( )