库纳尔和霍洛维茨报告说，那些使用免提电话之类的人，他们的平均反应时间比不使用免提电话的人慢212毫秒。
As Kunar and Horowitz report, those who were making the equivalent of a hands-free call had an average reaction time 212 milliseconds slower than those who were not.
不使用互斥对象时，即使主线程在thread_function线程睡眠一秒钟期间内对myglobal加一，thread_function苏醒后也会覆盖主线程所加的值。
Without the mutex, thread_function will overwrite the incremented value when it wakes up if our main thread increments myglobal during thread_function 's one-second nap.
找强烈的驾驶感觉，在疯狂地准备比赛，你将不得不使用防滑出跳跃及每个弯来优化你的速度，并取得宝贵的对手秒的最大。
Get ready for intense driving sensations in frantic RACES where you'll have to use jumps and skid out to the Max at each bend to optimize your speed and gain precious seconds over your opponents.
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