郭竹勇 2021-04-23 00:36 不是吧，洋葱不是都紫皮的吗？现在市场的转基因蔬菜水果主要有大豆，开发者_如何学C甜菜，玉米王小琛
Ruby: 1.9.2 Rails: 3.0beta3 I need some help with associations in Rails 3. I have the following models (see excerpts below):
加载中,请稍侯......