We can infer from the passage that______.
A.parents all agree with the idea of avoiding competitive sports
B.parents enjoyed their P. E. classes when they were students
C.a lot of attention is paid to students' academic subjects
D.a lot of schools don't have enough P. E. teachers
第7题
Iub接口是()。
A、NodeB和RNC间接口
B、RNC和RNC间接口
C、RAN和CN间接口
第8题
A.Iub、Iur和Iu
B.Iu、Iub和Iur
C.Iur、Iu、Iub
D.Iu、Iur和Iub
第9题
A.Iub接口允许RNC和NodeB协商有关的无线资源
B.用于控制广播信道的信息和在广播信道上传输的信息
C.NodeB和RNC间的操作维护信令
D.Iub专用信道数据流
E.Iub公共信道数据流
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