若关于x的一元二次方程kx2+2(k+1)x+k﹣1=0有两个实数根,则k的取值范围是( )。
k≥,且k≠0
--- Have you got ready for the meeting?
--- Not yet. We need ________.
A.three other chairs
B.other three chairs
C.another three chairs
D.three another chairs
如图所示的生活用具中,使用时可以省距离的是( )