An internet is a combination of networks connected by （） .When a datagram goes from a source to a （） ，it will probably pass many （） until it reaches the router attached to the destination network．A router receives a （） from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet The decision is based on optimization： Which of the available （） is the optimum pathway.
When a datagram goes from a source to a （）An internet is a combination of networks connected by （） .When a datagram goes from a source to a （） ，it will probably pass many （） until it reaches the router attached to the destination network．A router receives a （） from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet The decision is based on optimization： Which of the available （） is the optimum pathway.
An internet is a combination of networks connected by（）.The Internet is a （） network of networks which interconnects （） ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes long distance collaborations, retrieving free software and documents, （） library catalogs, （） in to supercomputers - the list of current Internet activities and （） is large and the range of possible future applications is as unlimited as our imagination.
The Internet is a （）| Halloween originated as a celebration
connected with evil spirits. Witches flying on broom sticks with black cats,
ghosts, goblins (丑妖怪)and skeletons(骷髅) have all evolved as sym bols of
Halloween. They are popular trick-or-treat costumes and decorations for greeting
cards and windows. Black is one of the traditional Halloween colors, probably
because Halloween festivals and traditions took place at night. In the weeks
before October 31, Americans decorate windows of houses and schools with
silhouettes of witches and black cats. Pumpkins are also a symbol of Halloween. The pumpkin is an orange-colored squash, and orange has become the other traditional Halloween color. Carving pumpkins into jack-o’-lanterns is a Halloween custom also dating back to Ireland. A legend grew up about a man named Jack who was so stingy that he was not allowed into A. who was too greedy to give money to others B. who was warm-hearted C. who always made fun of others D. who always helped others [单项选择]How were Frank and I connected
A. My grandmother and his grandmother were sisters. B. We were first cousins once removed. C. We were second cousins once removed. D. My great-grandmother and his great-grandmother were sisters. 我来回答: 提交
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