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采用恺撒(Caesar)密码,对明文nice进行加密所产生的密文是()。
A.qlfh
B.ojdf
C.kfzb
D.pkeg
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A.qlfh
B.ojdf
C.kfzb
D.pkeg
假设有一加密算法:将明文的每一个字母更换成后一字母(如:a加密成b,Z加密成a),其他符号不变。解密反之。则这种加密算法属于()。
A)对称式密码体制
B)分组密码技术
C)公钥密码体制
D)短文单向函数密码技术
Pat thought Caesar was his ______.
A. friend
B. servant
C. master
D. slave
A.Hamlet and King Lear
B.Antony and Cleopatra and Macbeth
C.Julius Caesar and Othello
D.The Merchant of Venice and A Midsummer Night's Dream
A Julius Caesar
B Falstaff
C Hamlet
D King Henry
此题为判断题(对,错)。
此题为判断题(对,错)。
Passage One
Walking through the dry leaves on his way home, Pat thought of what a bad day in school it had been. But every day was a bad day for him; he and the school did not like each other. But now that he was in the forest, Pat began to feel more like his usual self. He stopped to look at the quick moving stream of water called the Totopotomy. This little river was named for a man Pat liked, Totopotomy chief of the friendly Paumunkey Indians. He had heard stories about boys caught by the Paumunkeys who, when they were free, did not want to go home. Pat could understand how they felt. They did not have to go to school; they lived in the fresh air, and went fishing and hunting. How wonderful that must be!
The gentle sounds of a bird singing could be heard through the trees. Pat looked up, and tried to make the same sound. Uncle Langloo had told him to try and learn the language of the birds, and he was trying. Pat wanted to be like his uncle in every way. Langloo Win- ston was a hunter who spent most of his time living with the Indians. He fished with them, talked with them, even dressed like them, and the Indians loved him.
When Pat reached home, a young slave named Caesar ran out to meet him. Pat gave him a friendly push, and both boys rolled in the red earth. Caesar's job was to serve Pat, but he was more friend than servant. Even as a boy, Pat Henry did not believe in such differences between men.
36. The Paumunkeys did all the following except ______.
A. not having to go to school
B. living in the fresh air
C. going fishing and hunting
D. not wanting to go home