46. What is the main idea of the passage?
(A) Being in a racially diverse environment benefits the students.
(B) More and more private schools are racially diverse in the U.S.
(C) The world is changing but schools should stay the same.
(D) Gender equality is the most important issue in education.
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統計: A(305), B(59), C(17), D(50), E(0) #2920418
統計: A(305), B(59), C(17), D(50), E(0) #2920418