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分散自律CTC接车进路自动控制时机可以分别按照原则,提前若干时间或者提前若干闭塞分区办理()触发。

发布日期:2021-03-22

分散自律CTC接车进路自动控制时机可以分别按照原则,提前若干时间或者提前若干闭塞分区办理()触发。
A

时间触发

B

运行触发

C

空间触发

D

间隔触发

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Practice 4  Bluetooth is the newest kid on the technology block, and it holds a lot of promise for the assistive technology industry. Named for a 10th Century King of Denmark who unified the kingdoms of Denmark and Norway, Bluetooth is a shot-range wireless communication specification that promises to improve and increase electronic access to a number of environments by overcoming some of the obstacles typical of current technology. Bluetooth technology will enable devices to communicate and transfer data wirelessly and without the line-of-site issues of infra red technology.  So how does it work?  Bluetooth devices search each other out within their given operational range. Unlike devices that are wired together, Bluetooth devices do not have to be aware of the capabilities or properties of the devices to which they will connect beforehand. Bluetooth devices have a built-in mechanism that lets each device identify itself as well as its capabilities as it connects into this new Bluetooth network. This dynamic network does have a controlling device that designates itself as the master for the connection. Its programming and the capabilities necessary for the given task determine whether or not a device can be a master. For example, a cell phone may act as a master device when connecting to a headset, an ATM, or an information kiosk. However, the same cell phone or headset may act as a slave device to the information kiosk, now acting as the master device, broadcasting emergency evacuation information. The cell phone and kiosk can function in either capacity depending on the required function and their programming.

古人把“君”解释为()

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表示“警告、警戒”意义的安全色是()。

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增强桩冠固位的方法中错误的是()

2013年5月5日,甲拒绝向乙支付到期租金,乙忙于事务一直未向甲主张权利。2013年8月1日,乙因出差遇险无法行使请求权的时间为1个月。根据《民法通则》的规定,乙应最晚于()请求人民法院保护其权利。

开挖裂缝时,开挖沟槽的长度应超过裂缝两端各至少()m。

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