The clauses have different relations which are often denoted by correlatives.各分句之间可以有各种不同的关系,常用关联词表示.The union of two sets A and B is denoted by AUB.两个集合A和B的并,用AUB表示.In the Middle Ages the term "drab" denoted a very simp...
Three hundred thousand tons of cereals are needed to replenish stocks.需要30万吨谷类补充库存。They replenish the Xiakangjian flora and verify that this flora belongs to the Cathaysia - Gondwana mixed flora.等植物化石,进一步完善了夏康坚植物群的组合面貌,证...