Then in addition to online, the official WeChat account on WeChat is also a way to find the answer, so this is the second method. In other words, in the official WeChat account on WeChat, you can find some official WeChat accounts related to postgraduate study. For example, some independent WeChat official accounts related to postgraduate study can find the answer, and the answer will be posted on it.
In other words, after the exam, there will be an official answer about mathematics.