当一MS作被叫时，MSC/VLR是依靠（）号码来找到IMSI从而能够PAGING。
参考答案：MSRN
在人工开挖过程中，临近设计高程时，保护层暂不开挖的范围是______。
A．0.2～0.3m B．0.1～0.3mC．0.2～0.4m D．0.3～0.5m
At times ,worrying is a normal, ________response to a difficult event or situation—a loved one being injured in an accident , for example.
A．effective
B．individual
C．inevitable
D．unfavorable
At times ,worrying is a normal, ________response to a difficult event or situation—a loved one being injured in an accident , for example.