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Mathematics in some colleges and universities is an independent proposition, which is more difficult than mathematics one, two, three and four in the national unified examination?
Generally speaking, it is a >; = self-proposition > second > third

The content of self-proposition is generally less than one, but the difficulty of self-proposition has not changed much. If you have real questions, you can get a good grade. The difficulty of self-proposition varies from school to school.

No matter which real question is the key!