[问答题] 为什么听觉有方向感？

单相重合闸在哪些情况下被闭锁？ 申请加入党的人必须（）党的纲领和章程 ["学习","承认","精通","遵守"] 商品名称不能作为商标。商标也不能作为商品名称。 Which two statements about the Cisco Aironet Desktop Utility (ADU) are true（） ["The Aironet Desktop Utility （ADU ）profile manager feature can create and manage only one profile for the wireless client adapter.","The Aironet Desktop Utility (ADU) can support only one wireless client adapter installed and used at a time.","The Aironet Desktop Utility (ADU) can be used to establish the association between the client adapter and the access point , manage authentication to the wireless network , and enable encryption.","The Aironet Desktop Utility (ADU) and the Microsoft Wireless Configuration Manager can be used at the same time to configure the wireless client adapter."] 冬期施工的特点是（）。 ["工程质量事故的多发季节","事故出现的隐蔽性、滞后性强","计划性强","准备工作时间性弱","施工条件及环境不利"] 为什么听觉有方向感？