The DSM committee removed the bereavement exclusion — a small, almost footnote at the bottom of the section that describes the symptoms of major depression — from the manual.

委员会将“排除丧亲之哀“——在章节底部很小一块，几乎是脚注的文字，描述重度抑郁症状——从手册中去掉了。

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Critical sections operate on the principle of mutual exclusion (when a thread is within a critical section, all other threads are excluded from entering).

临界段操作时坚持互斥锁(mutual exclusion)原则(当一个线程处于临界段中时，其他所有线程都不能进入临界段)。

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Critical sections operate on the principle of mutual exclusion (when a thread is within a critical section, all other threads are excluded from entering).

临界段操作时坚持互斥锁(mutual exclusion)原则(当一个线程处于临界段中时，其他所有线程都不能进入临界段)。

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