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A city wants to help teachers of its high school students (age14-18)improve their teaching. It is considering two plans: 1. Choose a small group of excellent teachers; these teachers will attend a class led by an expert for additional training in how v. 2 At the turn of the new century, with the development of human modern society and galloping rate of science and technology, students more and more tend to raise the level of their literacy. Actually, no one can turn a blind eye to the pivotal role of teachers in the students' success. A simple r...