Since it’s a tourist visa, you are required to show a copy of the round trip flight ticket to China and a copy of the reservation in one or more Chinese hotels indicating the entire duration of your stay that contains the names of all persons who intend to apply for a visa and stay in the hotel. If you are planning to stay with a friend or family, you will not have to book a hotel. Nevertheless, your friend or relative will have to send you an invitation letter.
The most common tourist visa is the single-entry visa (it is not allowed to leave and re-enter China with the same visa) and it lasts 30 days. It is also possible to apply for a double entry tourist visa and a multiple entry tourist visa. However, the double or multiple entry visa is only issued in very rare cases.