A、TCP and UDP port numbers are used by application layer protocols.
B、TCP uses port numbers to provide reliable transportation of IP packets.
C、TCP uses windowing and sequencing to provide reliable transfer of data.
D、TCP is a connection-oriented protocol. UDP is a connectionless protocol.
第1题
A.some extension of life span
B.some duration of validity
C.some form. of reward
D.some kind of monopoly
第2题
A.some extension of life span
B.some duration of validity
C.some form. of reward
D.some kind of monopoly
第3题
A.Emphasis on beauty and grace.
B.Renaissance technical methods.
C.Disharmonious color schemes.
D.Unrealistic figures.
第4题
A.Emphasis on beauty and grace.
B.Renaissance technical methods.
C.Disharmonious color schemes.
D.Unrealistic figures.
第5题
A.Lyrical and well-structured.
B.Free-flowing.
C.Simple and rather crude.
D.Conversational and casual.
第6题
A.James Joyce
B.William Faulkner
C.John Steinbeck
D.Sherwood Anderson
第7题
A.James Joyce
B.William Faulkner
C.John Steinbeck
D.Sherwood Anderson
第8题
A、It has two levels of understanding.
B、It requires imaginative participation of the reader.
C、It allows different interpretations.
D、It always contains a moral lesson.
第9题
A.severity
B.resilience
C.persistence
D.arduousness
第10题
A.Mixing housing of different prices and styles.
B.Offering residents a "gratifying public realm" .
C.Forcing residents to drive, often in heavy traffic.
D.Giving people of diverse backgrounds and lifestyles an opportunity to interact and thus develop mutual respect.
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