云中飞行常产生中度积冰的云主要有：（）.A.St，Sc B.Ac，Cu C.As，N_爱下问搜题

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问题单项选择题

云中飞行常产生中度积冰的云主要有：（）.

A.St，Sc

B.Ac，Cu

C.As，Ns

D.Cb，Fs

答案

参考答案：C

选择题

The hunter _____ his gun under the tree where he was _____.

A. lay; lieing
B. laid; lying
C. lied; laying
D. lay; lying

单项选择题

业务信道分配成功次数统计点是（）消息

A.Paging Responce

B.Channel Assignment Message

C.Assignment Request

D.Assignment Completion