【单选题】一个进程退出临界区后会释放信号量,当发现互斥信号量的值( )时,就会唤醒等待队列的进程。
【简答题】Please match these phrases with the correct meaning.
【单选题】---Hello.Let me introduce myself. I am Linda.---_________________________________welcome.
C.
I’m Helen. Nice to meet you.
【简答题】Match these phrases from paragraph 5 of the article to their meanings.
【单选题】形成周围神经纤维髓鞘的神经胶质细胞是( )