标题: OG sample question 103题求解 [打印本页] 作者: heyifeifei 时间: 2011-5-7 21:03 标题: OG sample question 103题求解 正确句子是：Yellow jackets number among the 900 or so species of the world’s social wasps , wasps that live in a highly cooperative and organized society consisting almost entirely of females—the queen and her sterile female workers.