In fact, it is not terrible to solve comprehensive problems as long as we can clearly divide the problem-solving levels of comprehensive problems and adopt the method of breaking up the whole into parts and solving one problem at a time. Especially the first question is based on basic knowledge.
In recent years, a kind of exploratory questions has appeared in the senior high school entrance examination questions, which usually explore the conclusion or whether it exists under given conditions; Or explore what conclusions will appear under given conditions.
To solve this kind of problem, it is usually assumed that the conclusion to be explored is established (exists), and correct reasoning is carried out with known conditions and mastered knowledge. If the derived conclusion is consistent with known conditions or theorems, it means existence; Otherwise, it does not exist. As for the topic of coordinate system, it is good to grasp the key coordinates and analyze them carefully. This kind of problem is usually the combination of coordinate system and geometry, so the coordinates of points are related to geometric figures, which is easy to grasp. )
In fact, the last question is not impeccable. As long as you calm down, at least the first one or two questions are relatively easy.
Good luck in the LZ exam ~ I believe you can do it