Jonathan and Joe left the house to go for__ after supper.
乔木树种的生活型为()
咽鼓管的开口部位在()。
John complained to the bookseller that there were several pages______ in the dictionary.
法瑞学派群落分类方法的基础是()
在市场经济条件下,企业制度的基础和核心是()
Steve looked at the envelope and recogniz ed Jenny’s handwriting _______.
师德的灵魂是()
斯金纳认为,操作行为主义的核心概念是()
梵高是 _____画家。