【简答题】读等高线地形图,完成下列问题 (1). 此地形的最高处海拔为 米,是 地形类型。 (2). 写出图中字母所表示的地形部位名称 A B C D . (3). 对比 D 处和 E 处坡度更陡的是 处,判断理由是 。
【简答题】Several years ago, a television reporter was talking to three of the most important people in America. One was a very rich banker, another owned one of the largest companies in the world, and the thir...
【多选题】可燃气体探测器的安装应符合下列()要求。
A.
安装位置应根据探测气体密度确定。若其密度小于空气密度,探测器应位于可能出现泄漏点的上方或探测气体的最高可能聚集点上方;若其密度大于或等于空气密度,探测器应位于可能出现泄漏点的下方
D.
线型可燃气体探测器在安装时,应使发射器和接收器的窗口避免日光直射,且在发射器与接收器之间不应有遮挡物,两组探测器之间的距离不应大于14m
【简答题】读图“某山区等高线地形图”(单位:米),完成下列问题。(8分) (1)图示区域主要的地形类型是_______________,虚线A所代表的地形部位名称是______________。 (2)从方位看,度假村甲位于B山的_________坡。度假村甲能否看到乙村?__________。 (3)若丙村有一口井,一年中太阳光直射井底的次数为_______次。 (4)图中丙村计划从河流中引水,①、②两条...
【简答题】下图 为我国东南某地高速铁路工程建设等高线规划图,据此回答下列问题。 ( 1)图示区域的地形类型是___________。 ( 2)A所表示的地形部位是___________, B所表示的地形部位是___________。 ( 3)图中螺溪的流向大致是___________。 铁路桥甲的图上距离 为2厘米 ,则 实际长度为 ___________米。 ( 4)为保护铁路,在 图中 1处建有护 坡,...
【单选题】下列等高线地形图中所表示的地形类型是( )
【单选题】Which of the following states is the most populous one in Australia?
【简答题】Several years ago, a television reporter was talking to three of the most important people in America. One was a very rich banker, another owned one of the largest companies in the world, and the thir...
【单选题】大多数学者认为,烟熏的口感来自于熏烟中的( )物质?
【简答题】A Several years ago,a television reporter was talking to three of the most important people in America. One was a very rich banker,another owned one of the largest companies in the world,and the third...