Ozone is a highly reactive form of oxygen gas.臭氧是一种非常活跃的氧气形态。Objective: To research the clinic curative effect on acute fetal distress by Atropin with inhaling oxygen.目的探讨阿托品与吸氧联合治疗急性胎儿窘迫的临床疗效.The sample brominated epoxy...
A number of staircases ascend from the cobbled streets onto the ramparts.一段石阶从鹅卵石路上一直向上直通城墙。the ramparts and fortifications of the Old Town旧城区的城墙和城堡a fortress town enclosed by four miles of ramparts由四英里长的城墙围着的设防城镇...
Rome was set up by a group of islanders who lived in Apennines peninsula.罗马共和国是由一群居住在亚平宁半岛的岛民建成的.The islanders were astonished. They had known him as an amiable beekeeper.岛上的居民都感到吃惊.他们只知道他是个和蔼可亲的养蜂人.Pacific Islanders, ma...