题目下列各组数据的三个数,是勾股数的有（ ）①323^{2}32,424^{2}42,525^{2}52②666,888,101010③777,242424,252525④13\frac{1}{3}31,14\frac{1}{4}41,15\frac{1}{5}51⑤1.51.51.5,222,2.52.52.5A.111个B.222个C.333个D.444个知识点：勾股数章节：图形的性质 / 三角形
