3GPP接口协议栈的划分继承了ISO七层模型思想。Uu接口和Iu接口的协议栈结构通常被分为两部分:()和()
参考答案:用户平面;控制平面.
膀胱、 * * 损伤暂时性膀胱造瘘需留管()
A.3~5天
B.1~2周
C.半个月
D.15~20天
E.3周
—Excuse me, could you help me carry the heavy box?
— __ [ ]
A. Yes,l could.
B. It doesn't matter.
C. With pleasure.
D. Don't mention it.