皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
件杂货在卸货港编制使用的主要单证有哪些?
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】速率155.520Mbit/s是( )系统的标准速率等级之一。
A.
SDH
B.
PDH
C.
PCM
D.
STM-1
【单选题】STM_1的速率是 Mbit/s,STM_16的速率是STM_1的 倍。()
A.
155.520 4
B.
155.520 ,16
C.
139.264 ,16
D.
622.080,4
【判断题】STM-1的正常速率是51.840Mbit/s。
A.
正确
B.
错误
【单选题】----Don't forget to ask him to write to me. ----I won't. As soon as he ____, I'll ask him to write to you.
A.
will come
B.
came
C.
comes
D.
will coming
【单选题】--- Don’t forget to ask him to write to me. --- I won’t. As soon as he _______, I’ll ask him to write to you.
A.
 will come
B.
came
C.
comes
D.
is coming
【单选题】--- Don’t forget to ask him to write to me. --- I won’t. As soon as he __ ______ _____, I’ll ask him to write to you. A. will come B. came C. comes D. is coming
A.
1
B.
2
C.
3
D.
4
【判断题】SDH的基本速率是155.52Mbit/s,称为STM-1,更高的速率是STM-1的N倍,表示为STM-N。
A.
正确
B.
错误
【单选题】SDH最基本的模块信号是STM-1,它的速率是155Mbit/s,STM-16的速率是 ________。
A.
100Mbit/s
B.
622Mbit/s
C.
2.5Gbit/s
D.
10Gbit/s
【简答题】阅读理解。 When you go to see a doctor, he will write you a note (处方) to take to the chemist for some medicine. Chemists are usually good at reading doctors' notes.But sometimes doctors write too badly and...
【单选题】— Don’t forget to ask him to write to me. —I won’t. As soon as he _______, I’ll ask him to write to you.
A.
will come
B.
came
C.
comes
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题