题目内容

---Who’s that girl over there? ---Julia,she is a student of ____.

A. my fathers’
B. my father
C. my fathers
D. my father’s

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--Have you read ________? ---Yes, I have.

A.today newspaper
B. today’s newspaper
C. Today’s newspaper
D. newspaper of today

--My seat is between ______.we often help each other with our lessons.

A.Tim and Jack
B. Tim and Jack’s
C. Tim’s and Jack’s
D. Tim’s and Jack

某系统中有3个并发进程，都需要同类资源4个，请问该系统中不会发生死锁的最少资源数是（）。

A. 9
B. 10
C. 11
D. 12

破坏死锁的4个必要条件之一就可以预防死锁。若规定一个进程在请求新资源之前，首先释放已占有的资源，这是破坏了（）条件。

A. 不可抢占条件
B. 互斥条件
C. 请求和保持条件
D. 环路等待条件