【简答题】We take this opportunity to approach you ___ the establishment of the trade relations with you.
【单选题】1952年发生在英国伦敦的世界八大公害之一“烟雾事件”的主要污染物是( )
【单选题】下列哪些因素妨碍蛋白质形成α-螺旋结构?
【判断题】充分利用课堂主渠道,着力开展综合性学习是实施语文综合性学习的方法与途径
【单选题】We of this opportunity to approach you for the establishment of trade relations withyou.
【简答题】We __ __ __ this opportunity to approach you for the establishment of trade relations