research direction
Regardless of the direction
subject of examination
(1) 10 1 ideological and political theory
(2)20 1 English 1
(3)30 1 Math 1
(4)878 signal and system
Bibliography 207200469 is the best. You can ask your seniors for advice.
20 16 review outline for graduate students of signal and system in sun yat-sen university (including real questions and answers)
"20 16 Sun Yat-sen University Signal and System Sprint Collection"
"20 16 Big Signal and System Five Sets of Exam Papers and Answers Analysis"
Signal and Linear System Analysis Wu Dazheng Higher Education Press