4种常见的洗头误区，你中招了吗
[2]何增颖.虚拟机技术的实验教学应用[J].实验科学与技术.2010（2）：80-82.
No matter what you want to acplish in the period of college, you must first know exactly what you really want to achieve. Most people are not clear about what they want. As a result, they put most of their energy in thinking but not spend their time and money to take action.