2020高三数学试题集[整理]0

2020数学试题集1．已知集合P = {(x，y)| x2 + y2 = 1}，Q = {(x，y) | 2x2 + 3y2 = 6}，则有 A．PQ B．P Q C．P∩Q = P D．P∩Q