下列方程是一元一次方程的是( )
A:2x-3y=0
B:x-1=0
C:x2-3=x
D:1x+3=-1
俄罗斯内河航运中,航运价值高,且为欧洲第一长河的是( )
My hands are than yours.
It's ____. It lost its way home.