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【单选题】
What does 'bounce back' mean in the first paragraph?
A.
leap suddenly
B.
recover from a terrible situation
C.
refuse to accept
D.
come back after being refused
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参考答案:
举一反三
【单选题】数据链路层的数据单位是
A.
B.
分组
C.
数据报
D.
【单选题】Last week the writer went to the theatre . He was the theatre.
A.
on
B.
at
C.
to
D.
into
【单选题】Last week the writer went to the theatre. He was ______ the theatre.
A.
to
B.
At
C.
into
D.
On
【单选题】OSI参考模型中数据链路层的单位是?
A.
B.
报文
C.
比特
D.
【单选题】Last week the writer went to the theatre. Ha was ____the theatre.
A.
to
B.
at
C.
into
D.
on
【单选题】数据链路层的数据单位是
A.
比特
B.
C.
数据包
D.
数据报
【单选题】Last week the writer went to the theatre. He was ______ the theatre.
A.
to
B.
at
C.
into
D.
On
【单选题】物理层和数据链路层的单位分别是( )。
A.
比特,包
B.
包,帧
C.
比特,帧
【单选题】Last week the writer went to the theatre . He was the theatre.
A.
to
B.
at
C.
into
D.
on
【单选题】数据链路层的单位是
A.
B.
C.
D.
参考解析:
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