We repeatedly requested you by faxes to expedite the opening of the relative letter of credit so tha

We have repeatedly requested payment of $800,()your overdue account.

A、on

B、for

C、with

D、in

Which one is true about identifying the first step according to the article？

A.We can make the cost of effort feel even smaller if we link that small step to something we’re actually looking forward to doing.

B.Tie the task that we’re avoiding to something that we’re not avoiding.

C.Sometimes we find ourselves returning to a task repeatedly, still unwilling to take the first step.

D.Achieve that small goal, and you’ll feel more motivated to take the next small step than if you’d continued to beat yourself up about your lack of language skills.

A.Credit control request

B.Update location request

C.Create session reques

D.Initial context setup request

E.Attach request

A.attach reques

B.attach complete

C.detach request

D.detach complete

A.attach reques

B.attach complete

C.detach request

D.detach complete

A.Service request

B.Attach accept

C.Attach request

D.TA reques

A.Session

B.Reques

C.Response

D.Application

以下哪些是 attach流程中 Create session Reques消息的必选信元？()

A EPS Bearer ID

B. RAT Type

C. Access Point Name(APN)

D. Bearer Level Qos

A.Credit control request

B.Create session reques

C.Attach request

D.Update location request

E.Initial context setup request

A.请求消息没有发送到HSS

B.HSS没有响应请求消息

C.HSS返回的响应消息没有送到MME

D.中间DRA设备故障，未正常转发请求消息