[多项选择]纵向水平杆的对接接头应交错布置,具体要求是()。 A. 两个相邻接头不宜设在同步、同跨内 B. 各接头中心至最近主节点的距离不宜大于纵距的1/3 C. 各接头中心至最近主节点的距离不宜大于纵距的1/2 D. 不同步、不同跨的两相邻接头水平向错开距离不应小于500mm E. 不同步、不同跨的两相邻接头水平向可在同一个平面上
第17题: [单项选择]Passage One Questions 26 to 28 are based on the passage you hove just heard. A. To do comprehensive exercises. B. To read simple sentences. C. To copy our from the textbooks. D. To do all of the above. 参考答案:D 答案解析:[听力原文] What should eight-year-old children be able to do