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【单选题】
下面的描述中,( ) 是错误的。A.
进程执行的相对速度不能有进程自己来控制
B.
P、V操作是原语操作
C.
利用信号量的P、V操作可以交换大量信息
D.
同步是指并发进程之间次年在的一种制约关系
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举一反三
【单选题】Questi ons I and 2 will be based on the following news item.
A.
It can dive to a depth of 100 meters
B.
It can receive a video signal
C.
It can control an operator remotely
D.
It can see what the operator sees through a virtual reality headset.
【简答题】Choose the best answer for each of the following multiple choice questi
【简答题】'Meeting People' Now listen to a short conversation between a student and his friend. Question Describe the man's problem, and the two suggestions that his friend makes about how to handle it. What do...
【单选题】江山易改、禀性难移说的是
A.
一个人的性格特点是难以改变的
B.
一个人的气质在一生中是比较稳定的
C.
环境改变了，人的气质也不会发生变化
D.
环境决定人的气质，也决定着一个人成就的高低
【简答题】"Vuoi leggere questi romanzi?""Sì,sì, grazie, puoi ( ) [lasciare questi romanzi a me] in ufficio?"
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