爆炸周围介质在压力作用下会受到（）。 ["火灾影响","机械破坏","气流冲击","二次爆炸"]
If the metacentric height is large，a floating vessel will（）. ["be tender","have a slow and easy motion","be stiff","have a tendency to yaw"]
草食性的反刍类动物中，食物主要是从何处返回口腔咀嚼？（） ["皱胃","网胃","瘤胃","瓣胃"]
贷款定期结息提供（）结息周期。 ["A.按月","B.按季","C.按半年","D.按年"]
最原始的具胎盘的哺乳动物是：（） ["食虫类","有袋类","啮齿类","单孔类"]
哈尔滨地铁一号线轴端组成又分为三种，分别为（）安装组成、（）安装组成、（）安装组成。
