介绍:
When you have a question, how do you get an answer? Well, there&`&s an app for it. Paying-for-knowledge Apps are getting popular. Wang Sicong, son of Chinese real estate tycoon Wang Jianlin, the richest man in Asia, also an internet celebrity in China, has already made 240 thousand Yuan (around 366,000 USD) by answering 32 questions.
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