1, my classmate took the computer of Beijing University of Posts and Telecommunications at that time. The math test was one, and my classmate took the test of 20 1 1. What was the specific number before? This is not clear.

2. It is the most difficult to test the number one now, compared with the number two and the number three, because the number one involves a wide range. Of course, the emphasis is calculus. When reviewing, read the textbook first, and then do something else. Before relying on textbooks, write down the outline of last year's postgraduate entrance examination and compare it. Don't read unless you take the exam.

Satisfied, please adopt! thank you