公钥基础设施(PKI)是以()为基本技术手段实现安全性的技术。
A.私钥加密技术
B.单一加密技术
C.公钥加密技术
D.数字签名技术
参考答案:C
七、短文改错(10分)
It was snowing hardly last Monday morning. Li Hua was at the bus stop, waited for Bus No.6 to go to school. In a while, a bus came and she got it. There were many passengers on the bus. Some were talking but some were looking out of the window. Suddenly the bus stopped. The driver turned around and said, “sorry. The bus has been broken down. Please get off and help push it.” When he heard this, Li Hua and the other passenger got off the bus. They worked hard together, pushed the bus forward. Soon the bus was running again. Both the passengers were smiling and the sun was shining.
大堂经理向客户推荐金融产品应先帮助客户办理完业务,初步了解客户需求,适时推出“切入”产品。面带微笑,语态自然诚恳。