把一根木头锯成3段用了8分钟，如果要锯成8段需要多少分钟？1L2B8\)z0k4S
算式：提示5A6~-]6B1w0h;I9E1L2B8\)z0k4S
答：锯成8段需要6B9V(m1L8t*z0C:n分钟。1L2B8\)z0k4S