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【单选题】
某网络物理层规定:信号的电平用5~15V表示二进制0,用-5~-15V表示二进制1,电缆长度限于15m以内,这体现了物理层接口的( )A.
机械特性
B.
电气特性
C.
功能特性
D.
规程特性
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知识点：
皮皮学刷刷变学霸
举一反三
【判断题】Spring Festival is the most important festival for the Chinese people,which falls the 1st day of the 1st lunar month.
A.
正确
B.
错误
【单选题】Which acupoint is the beginning and ending point of the ST meridian in the following points?
A.
Yinbai (SP1) ,Dabao (SP21)
B.
Chengqi (ST1) , Lidui (ST45)
C.
Tinghui (GB2) ,Zuqiaoyin (GB44)
D.
Shangyang (LI1) , Yingxiang (LI20)
E.
Zhongfu (LU1) , Shaoshang (LU11)
【简答题】Now listen to the last part of the story. Fill in the blanks with the words you hear and make a comparison between the ending you designed and the one you heard. I squared my shoulders and saluted and...
【单选题】Lian Zhan, the Chairman of the KMT, enjoyed the scenery of the Huangpu River _______ the night of May 1st.
A.
at
B.
in
C.
on
D.
over
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