送交者: 校长 于 2009-07-28, 12:15:32:

回答: just hedge like oil company does to oil 由 jxh 于 2009-07-28, 12:08:36:

• 找不到一个一闹蝗灾就挣钱的vehicle吗？ - jxh (34 bytes) 2009-07-28, 14:17:20 (350176)
  • 别教他。 (无内容) - @ (0 bytes) 2009-07-28, 16:47:38 (350274)
• u r just too stupid to play in this forum. (无内容) - @ (0 bytes) 2009-07-28, 12:33:44 (350106)
  • 捞干的！说说农民怎么用期货防范蝗灾！ (无内容) - 校长 (0 bytes) 2009-07-28, 13:28:54 (350130)

加跟贴