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【单选题】
以下对网络安全管理的描述中,正确的是()。A.
数据保密性是确定不同用户对信息资源的访问权限。
B.
故意威胁和偶然威胁并不属于安全威胁的范畴
C.
安全管理是使网络性能维持在较好水平
D.
安全管理的目标是保证重要的信息不被未授权的用户访问
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【简答题】It is New Year’s Day today. Many stores in our city are at great sales. So Lisa’s mother and Lisa go shopping in Justin Store. First they buy clothes. The clothes in the store are not expensive（昂贵的）. ...
【单选题】What aspect of wind power is the lecture mainly about?
A.
Electrical power in California
B.
Alternative energy sources
C.
Problems associated with turbines
D.
Wind as a renewable energy option
【简答题】根据上面的失物启事和招领启事内容回答下列问题。 小题1:What color is Lisa's jacket? 小题2:Where is Lisa's house? 小题3:Is Jack's father a teacher? 小题4:What's Jack's family name? 小题5:What's Mr. Hand's telephone number?
【单选题】Which of the following is NOT true about wind power?
A.
Wind was very expensive in the 90's.
B.
The turbines built in the 70's were fragile.
C.
Wind power still cannot compete with fossil fuels.
D.
Wind is still not favored today in America for its high cost.
【简答题】Rose: Hi, Lisa. What's wrong with you?______. Lisa: No, I don't. I've got the flu.
【单选题】Which of the following statements is true of wind power?.
A.
There is plenty of wind to provide the world's entire energy needs.
B.
It is the most rapidly growing type of electricity production.
C.
It may be more expensive.
D.
All of the above.
【简答题】阿斯顿阿斯顿
【单选题】听力原文：John and Lisa's skills are complementary, she's good at routine work while he's great at handing emergencies. Together they make a great team. (26)
A.
John and Lisa are team members.
B.
John and Lisa are good at handling emergencies.
C.
John and Lisa are good at routine work.
D.
John and Lisa are good partners when working together.
【简答题】Wind power are being used to generate (electronic) ______ .
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