下列各组线段中,能成比例的是( ) A.1cm,3cm,4cm,6cm B.30cm,12cm,0.8cm,0.2cm C.0.1cm,0.2cm,0.3cm,0.4cm D.15cm,16cm,40cm,6cm
问题描述:
下列各组线段中,能成比例的是( )
A. 1cm,3cm,4cm,6cm
B. 30cm,12cm,0.8cm,0.2cm
C. 0.1cm,0.2cm,0.3cm,0.4cm
D. 15cm,16cm,40cm,6cm
答
A、1×6≠3×4,故选项错误;
B、30×0.2≠12×0.8,故选项错误;
C、0.1×0.4≠0.2×0.3,故选项错误;
D、15×16=40×6,故选项正确.
故选D.