题目内容

Anything ________ should be returned to the owner.

A. borrow
B. borrowed
C. borrowing
D. to borrow

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Mary was one of the brightest students who ________ from New York University.

A. is graduated
B. has graduated
C. graduated
D. are graduated

The students in the classroom ________ not to make such a big fuss.

A. need
B. must
C. dare
D. ought

死锁的直接原因是什么？

A. 资源竞争
B. 资源不足
C. 进程互斥
D. 进程推进顺序不合法

死锁的根本原因是什么？

A. 资源不足
B. 资源互斥使用
C. 进程通信
D. 进程推进次序不合法