单项选择题
因争用资源产生死锁的必要条件是互斥、循环等待、不可抢占和(26);“银行家算法”是一种(27)技术。
(54)
A.申请与释放
B.释放与占有
C.释放与阻塞
D.占有且申请
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单项选择题
______Jenny._______name is Tom.()
A.I’m;My
B.Her;My
C.I’m;His
D.She’s;Her
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单项选择题
A.It's very good.B.It should be higher.C.It's the same as the post office pays.D.It varies according to the person's experience.
A.It's
B.
B.It
C.
C.It's
D.
D.It
E.
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