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【多选题】
ISO/OSI 参考模型中,对于传输层描述正确的有A.
为系统之间提供面向连接的和无连接的数据传输服务。
B.
提供选择,简单的拥塞控制。
C.
为传输数据选择数据链路层所提供的最合适的服务。
D.
提供端到端的差错恢复和流量控制,实现可靠的数据传输。
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【简答题】相传为春秋末年鲁国史官___________撰写。是我国第一部叙事详备的__________史书。
【单选题】Sporting activities are essentially modified forms of hunting behavior. Viewed biologically, the modem foot-bailer is in reality a member of a hunting group. His killing weapon has turned into a harml...
A.
are forms of biological development
B.
have actually developed from hunting
C.
are essential forms of taming the prey
D.
have changed the ways of hunting
【简答题】《左传》,全称《春秋左氏传》,又称《春秋左传》或《左氏春秋》。相传为春秋末年鲁国史官()所撰。
【单选题】Sporting activities are essentially modified forms of hunting behavior. Viewed biologically, the modern footballer is in reality a member of a hunting group. His killing weapon has turned into a harml...
A.
Hunting is very important in human civilization
B.
Sporting activities satisfy the desire of modern society
C.
It's hunting that provides human beings with food
D.
The importance of sporting activities in modern society
【简答题】我国第一部叙事详备的编年体史书是 , 又名《 春秋左氏传 》 , 相 传为春秋末年鲁国史官 所 作。
【简答题】《 左传 》是我国第一部叙事详备的( )体史书,相传为春秋末年鲁国史官( )撰写。
【单选题】一个电容器的耐压为 250V ,把它接入正弦交流电中使用,加在它两端的交流电压有效值可以是 ( ) 。 A. 150V B. 180V C. 220V D. 都可以
A.
。
B.
,
C.
、
D.
!
【单选题】Sporting activities are essentially modified forms of hunting behavior. Viewed biologically, the modern foot-bailer is in reality a member of a hunting group. His killing weapon has turned into a harm...
A.
are forms of biological development
B.
have actually developed from hunting
C.
are essential forms of taming the prey
D.
have changed the ways of hunting
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