读经纬网示意图(见图),回答下列问题。
当x=____ 时,分式3xx-2没有意义.
I know he's been curious about everything, but that's . Be patient!
下列有关说法中,正确的是( )
计算.
5×5=____ 3×5=____ 2×5=____ 5×1=____ 5×4=____
4×5=____ 5×2=____ 5×3=____ 1×5=____ 5+5=____