As far as the overall difficulty is concerned, the difficulty of 20 16 is very close to that of 20 15. In fact, this is expected, because the math problem of 20 13 has gradually stabilized.
In addition, the 20 16 postgraduate entrance examination questions always put forward high requirements for comprehensiveness and flexibility. But this does not mean that we can despise the foundation and focus on difficult problems and local topics in the review process. On the contrary, if you carefully observe the test questions of 20 16 postgraduate entrance examination mathematics, you will find that the ability requirements of the test questions are mainly reflected in the knowledge, understanding and proficiency of basic concepts, as well as the mastery and application of basic theories and methods. Basic concepts, basic theories and basic methods are what we often call the "three basics" of postgraduate entrance examination. Look at the 20 16 postgraduate mathematics questions, and you will find that the questions that directly examine the basic knowledge still account for a large proportion. In addition to the direct exam, for comprehensive questions, if you want to solve them smoothly, you need to build on the proficiency of candidates in basic knowledge.