Warning: unlink(G:/ciyuwu.com/SaxueFrame/data/cache/templates/default/yulu.detail.html/2147483/3231323436.html): Permission denied in G:\ciyuwu.com\SaxueFrame\core.php on line 1012
Warning: unlink(G:/ciyuwu.com/SaxueFrame/data/cache/templates/default/yulu.detail.html/2147483/3231323436.html): Permission denied in G:\ciyuwu.com\SaxueFrame\core.php on line 1012
谜面：有一棵树,在距树7米的地方有一堆草,一头牛用一根3米的绳子栓着,这头牛把这堆草全吃光了,为什么?提示：不考虑牛的体长谜底：牛没有拴在树上
