Before 18, we want to get away from our parents and the desire is always connected to action.
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Doing what we “should” is the most pervasive theme of the twenties.
A. 对
B. 错
As we approach 30, we are content with devoting ourselves to the “shoulds”.
A. 对
B. 错
A lack of mutuality is what Cathe-30 is all about for the couple.
A. 对
B. 错
以下说法错误的有：
A. 引入线程的系统，资源分配的单位仍然是进程。
B. 引入线程后，调度的单位仍然是进程。
C. 线程的创建和撤销比进程的创建和撤销系统开销小。
D. 引入线程后，一个进程的多个线程仍然不可能并行执行。
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