请问 og12 语法里 103题 是什么意思?能否帮我翻译一下 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 all females --the queen and her sterile famale workers. 121题 a选项 and前加逗号and不是应该链接2个句子吗,为什么and 后不是完整句子却对了呢?求解!!!