摘要: 模拟题。 这题第一个障碍是现在少见的循环电梯 ('pater-noster' elevator) "The building has `pater-noster' elevator, i.e. elevator build up from several cabins running all aro 阅读全文
posted @ 2014-11-23 11:06 Pat 阅读(518) 评论(0) 推荐(0) 编辑