700 questions, simulation 100 questions, there are two situations:

1. Every time 100 questions are different, 7 sets of 100 questions just contain all the questions.

2. Randomly select 100 questions from 700 questions at a time.

For 1, there is a clear answer:

According to the formula of pigeon hole principle, it takes 32 groups of 3200 questions to complete all the questions with a 95% chance.

In the second case, the specific result has not been worked out, but it is more than 1 1 times.

So it is not feasible to complete all the questions by doing simulation questions.