Baidu, a mobile phone software, knows and answers questions that can be exchanged for physical objects, phone bills or Q coins.

1. Baidu knows that it supports smart phone downloading, and you can get corresponding wealth by answering questions.

2. Users can exchange wealth for physical objects or corresponding virtual items, such as telephone bills and Q coins.

3. If there are no users who violate the rules, the physical prizes will be distributed to the users.