问题
单项选择题
When a mobile of B class is on the state of standby，what MM information is registered in SGSN？（）
A.LAI
B.CI
C.RAI
D.None
答案
参考答案：C
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When a mobile of B class is on the state of standby，what MM information is registered in SGSN？（）
A.LAI
B.CI
C.RAI
D.None
参考答案：C