最著名的公共密钥算法是()A、DESB、SKC、RSAD、PK

题型:单项选择题

问题:

最著名的公共密钥算法是()

A、DES

B、SK

C、RSA

D、PK

考点:电子商务员考试电商物流电商物流题库
题型:单项选择题
The old man walked slowly into the restaurant. His poor jacket, patched(打补丁的)trousers, and worn - out shoes made him     from the usual Saturday morning breakfast crowd. With the help of his walking - stick, he walked toward a   by the window. A young waitress named Mary watched him and ran over to him, and said, "Here, sir. Let me give you a    with that chair.”
Without saying a word, he smiled and nodded a thank - you. She pulled the chair away from the table. And then she helped him move in front of the chair, and get    seated with his walking - stick against the table. In a soft, clear voice he said, "Thank you, Miss." "You're welcome, sir." she replied. "My name is Mary. I'll be back in a moment. If you need   , just wave at me!"
      he had finished a hearty meal, Mary brought him the change from his ticket, helping him up from his chair and out from behind the table. She   him his walking - stick, and walked with him to the door. Holding the door open for him, she said, "Come back and see us, sir!" He said softly with a smile, "You are very kind!" When Mary went to clean his table, she was greatly   .Under his plate she found a business card and a$100 bill! The note read--"dear Mary, I respect you very much, and you respect yourself too. It shows by the way you    others. You have found the secret of happiness. Your kind gestures will shine through those who meet you.”
The man she had waited on was the   of the restaurant, This was the first time that she, or any of her workmates had ever seen him in person.
小题1:
A.give outB.put outC.stand outD.work out
小题2:
A.waiterB.managerC.doorD.table
小题3:
A.menuB.dishC.handD.bill
小题4:
A.comfortablyB.angrilyC.unhappilyD.excitedly
小题5:
A.everythingB.nothingC.anythingD.many things
小题6:
A.AfterB.UntilC.UnlessD.While
小题7:
A.madeB.tookC.gotD.handed
小题8:
A.boredB.frightenedC.surprisedD.pleased
小题9:
A.chatB.treatC.dealD.communicate
小题10:
A.customerB.friendC.ownerD.cleaner
题型:单项选择题

洗洁精能使油脂以细小的液滴均匀悬浮在水中形成乳浊液.洗洁精起的作用称为(  )

A.催化作用

B.乳化作用

C.氧化作用

D.脱水作用

题型:单项选择题

农业银行应与保证人明确约定保证期间,该保证期间一般不短于()年。

A.1

B.2

C.3

D.4

题型:单项选择题

下列哪种材料是绝热材料()

A. 松木

B. 玻璃棉板

C. 黏土砖

D. 石膏板

题型:单项选择题

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