题目下列四组数,是勾股数的是( )A.0.30.30.3,0.40.40.4,0.50.50.5B.303030,404040,505050C.666,777,888D.323^{2}32,424^{2}42,525^{2}52知识点:勾股数章节:图形的性质 / 三角形