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【单选题】

重放攻击破坏了信息的( )

A.
机密性
B.
可控性
C.
可鉴别性
D.
可用性
举报
参考答案:
参考解析:
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【单选题】
shuashuati.com

The boss asked John to find out where watermelons were sold in order to _________.

A.
persuade him to stay in the company
B.
prove he was a hardworking worker
C.
buy some watermelons for the company
D.
prove his abilities at work for himself
参考答案:
D
参考解析:
【单选题】
shuashuati.com

They lived a hard life then, for their father _______ for half a year.

A.
had lost his work
B.
has lost his work
C.
had been out of work
D.
has been out of work
参考答案:
C
参考解析:
【单选题】
shuashuati.com

John wanted to stop his job in his company because_________.

A.
Bobby was promoted but he was not
B.
he didn’t want to say good words of his boss
C.
he thought the boss didn’t take his hard work seriously
D.
he didn’t want to be an ordinary employee
参考答案:
C
参考解析:
【单选题】
shuashuati.com

What is the man doing now?

A.
Fixing his car.
B.
Working to make money.
C.
Planning to get a mechanic(机修工).
参考答案:
A
参考解析:
【单选题】
shuashuati.com

Mr. White ______ at 8:30 for the meeting, but he didn’t show up.

A.
should have arrived
B.
should arrive
C.
should have had arrived
D.
should be arriving
参考答案:
A
参考解析: