问题
问答题 简答题
GSM-R智能网的网络节点包括哪些？
答案
参考答案：
GSM业务交换点（gsmSSP）、GPRS业务交换点（gprsSSP）、智能外设（IP）、归属位置寄存器（HLR）、拜访位置寄存器（VLR）、业务控制点（SCP）、业务管理点（SMP）、业务管理接入点（SMAP）以及业务生成环境点（SCEP）。
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GSM-R智能网的网络节点包括哪些？
参考答案：
GSM业务交换点（gsmSSP）、GPRS业务交换点（gprsSSP）、智能外设（IP）、归属位置寄存器（HLR）、拜访位置寄存器（VLR）、业务控制点（SCP）、业务管理点（SMP）、业务管理接入点（SMAP）以及业务生成环境点（SCEP）。
Excused from recycling(回收利用) because you live in a high rise with a rubbish chute (垃圾道)? You won't be for long. Miami's Mark Shantzis has made it simple for those living in tall buildings to use the chute and recycle too . In Shantzis' Hi-Rise Recycling System, a chute leads to a pie-shaped container with six boxes that can turn around when operated. The system , which fits in the same space as the chute and container now in use, enables glass , plastic , paper , metal , and other rubbish to go into separate boxes . The system is controlled from a board next to the chute door. The board has a button for each class of recycling materials (as well as for unrecyclables). At the press of a button, a microcomputer locks all other floors' chute door and sets the recycling container turning until the right box comes under the chute. The computer also counts the loads and gives a signal by phone when the box is full. And a particular piece of equipment breaks up the nonrecyclables Sorting(分类) recyclables before they are collected saves the use of expensive materials recovery equipment which otherwise has to do the sorting . Such equipment often makes recycled materials very expensive, so expensive that tons of recyclables remain wasted . Shantzis believes his system could help recycled materials become more cost-effective. 小题1:The purpose in writing this text is _________.
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