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问题 选择题

“强者要找的是激烈的战场，弱者要找的是纯粹的安乐窝。”对这句话正确的理解是[     ]

A．人生的战场只有强者与弱者之分

B．强者积极面对竞争，弱者消极逃避竞争

C．强者永远是胜利者，弱者永远是失败者

D．竞争就是彼此争胜，互相超越对方

答案

答案：B

单项选择题

服毒后最好几小时内洗胃

A．1

B．3

C．6

D．12

E．24
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单项选择题

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.

In security, an (1) is a form of possible loss or harm in a computing system; examples of exposures are unauthorized disclosure of data, modification of data, or (2) of legitimate access to computing. A vulnerability is a weakness in the security system that might be exploited to cause loss or harm. A human who exploits a vulnerability perpetrates an attack on the system. Threats to computing systems are circumstances that have the potential to cause loss or harm; human attacks are examples of threats, as are natural disasters, inadvertent human errors, and internal hardware or software (3) . Finally, a control is a protective measure an action, a device, a procedure, or a technique - that reduces a vulnerability. The major (4) of computing systems are hardware, software, and data. There are four kinds of threats to the security of a computing system: interruption, interception, modification, and (5) . The four threats all exploit vulnerabilities of the assets in computing systems.

4（）

A．reason

B．assets

C．possession

D．component
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