China visa form A on section 2.2 section 2.3 and section 2.4

Diamondz, in fact, student visa (X-visa) is usually with a single entry, valid for three months and with no duration of stay (that is 000 day of stay). Holders of student visa should go through the formalities for a residence permit at a local public security authority within 30 days after entry into China. The validity of the residence permit is the legal period during which the student is allowed to study in China. This residence permit also allows the holder to enter into or exit from China within the period of its validity.

You just need to choose One entry valid for 3 months from application on Section 2
You need to fill the Date of your first entry to China on Section 2.3
You can fill 365 days for Your longest intended stay amoung all entries of your intended visits in China on Section 2.4

It is possible for you to get X visa within 1-2 working days if you apply for rush service.