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【单选题】
You told me there were many taxis but ______ over there.A.
there was not one
B.
there was no one
C.
there were none
D.
was none
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反馈参考答案：
举一反三
【简答题】In a lucid dream we can use Morse code to communicate with others.
【单选题】is an error detection code that most data communication networks use。
A.
CRC
B.
Manchester Code
C.
Huffman Code
D.
4B/5B Code
【单选题】is an error detection code that most data communication networks use。
A.
Cyclic Redundancy Code
B.
Manchester Code
C.
Huffman Code
D.
4B/5B Code
【单选题】Why does the author use the example of Pamela speaking Portuguese?
A.
To show code switching to create closeness between speakers.
B.
To show code switching to create social distance.
C.
To show code switching with a dialect of a language.
D.
To show code switching by an immigrant to the U.S.
【单选题】以下关于C源程序的叙述正确的是( )。
A.
注释只能出现在程序的开始位置或语句后面
B.
一条语句可以分写在多行中
C.
一个源程序只能保存在一个文件中
D.
一行中，不能有多条语句
【单选题】( ) is an error detection code that most data communication networks use.
A.
4B/5B
B.
CRC
C.
Manchester Code
D.
Huffman Code
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