发布时间:2025-02-02 04:33:39
【答案】:C
2020版教材P218 / 2019版教材P206
(3)按运行速度分类。1)低速电梯,v≤1.0m/s的电梯;2)中速电梯,1.0m/S<v≤2.5m/s的电梯;3)高速电梯,2.5m/s<v≤6.0m/s的电梯;4)超高速电梯,v>6.0m/s的电梯。
新房装修这7样东西万万不能省钱,越贵越好,我家贪便宜吃好多亏
2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39原一楼铝合金建设两窗改两门一楼 现装修为彩钢板断桥门窗 行政执法说不合格罚款合理吗
2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39 2025-02-02 04:33:39