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What do you mean by 3 14 mathematical agriculture or 3 15 chemical agriculture and 80 1 garden plants in the introduction to the postgraduate entrance examination? Did I just watch math and chemistry?
3 14 mathematical agriculture or 3 15 chemical agriculture refers to choosing one of the above two courses. namely

First, foreign languages, politics, mathematics, agriculture, garden plants

B, foreign languages, politics, chemistry, agriculture and garden plants

You can choose either of the above two groups of subjects.

3 14 mathematical agriculture or 3 15 chemical agriculture are all national entrance examination subjects, and Xinhua Bookstore has an outline for sale, which is simpler than the traditional figures 1, 2, 3.