题目内容

系统允许发生部分死锁，一旦发现有死锁进程，则通过杀死死锁进程来解决死锁问题的方法称为

A. 死锁预防
B. 死锁避免
C. 死锁检测
D. 死锁恢复

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一次分配所有资源来解决死锁的方法属于

A. 死锁预防
B. 死锁避免
C. 死锁检测
D. 死锁解除

为了预防死锁，可以在路口使用交通红绿灯。那么，该方法使得死锁的哪一个必要条件不成立？

A. 互斥条件
B. 不可剥夺条件
C. 请求和保持条件
D. 循环等待条件

死锁的必要条件包括哪些？

I.Read the following sentences carefully and decide whether it is a declarative sentence, an interrogative sentence, an imperative sentence or an exclamatory sentence.1.My father always tells me an interesting story before I go to bed everyday.2.Have you ever been to Shanghai？3.It is your father，isn't it？4.How kind you are！5.It being his first overseas training, the young pilot felt very uneasy.6.Are you kidding？.7.Pass me the ball，please.8.Look at that beautiful Parrot！