0.5×0.8×0.04×1.25×0.2×0.025
=(0.5×0.2)×(0.8×1.25)×(0.04×0.025)
=0.1×1×0.001
=0.0001
如图,A,B的坐标为(2,0),(0,1)若将线段AB平移至A1B1,则a+b的值为( )
下列词语解释错误的是:( )