whereas I remember in grad school, all the chinese students would group up together before class and cross-check their answers with one another. I remember in

whereas I remember in grad school, all the chinese students would group up together before class and cross-check their answers with one another. I remember in school all the engineering students would group up together before class and cross-check their answers with one another. It makes sense to me. They were pretty tight-knit, studied together and took the same classes all the time.