The occupation time in a cone in the positive quadrant for a standard two-dimensional Brownian motion is studied, and its first and second moments are given explicitly.
考虑标准二维布朗运动在正象限锥形区域的占有时，得到其一阶矩和二阶矩的表达式。
In America direct selling is typically someone's second job; in China it is a full-time occupation.
直销在美国通常是一个人的第二份工作，而在中国，直销是一份全职工作。
In my occupation dream, I want to be a doctor, so I didn't think the second choice basically.
在我的职业梦想中，除了做医生我压根儿没有想过第二个选择。
In my occupation dream, I want to be a doctor, so I didn't think the second choice basically.
在我的职业梦想中，除了做医生我压根儿没有想过第二个选择。
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