把9个边长是2厘米的小正方形排成一个大的正方形，这个大正方形的周长是请选择ABCD'K-c7T'B4}-z。9N2a/K6r0W7V9p2n8n+a0t2t+X.p-L
A．24厘米9N2a/K6r0W7V9p2n8n+a0t2t+X.p-L
B．36厘米9N2a/K6r0W7V9p2n8n+a0t2t+X.p-L
C．38厘米9N2a/K6r0W7V9p2n8n+a0t2t+X.p-L
D．42厘米9N2a/K6r0W7V9p2n8n+a0t2t+X.p-L