What does it mean to sign the 93rd college entrance examination before Guanyin Ling?

It's better for you to know for yourself from signing the contract. It's a lottery, which means you can get into a university, but it may not be the university you want to go to to to hire you, or it may not be the university you like very much. However, the lucky draw can only be used as a reference. There are many variables in the future, so don't care too much. The college entrance examination needs your own efforts. No matter what the final result is, you will not regret it.