76. What does paragraph 1 mainly discuss?
(A) Americans' belief in a “melting pot” myth and heritage
(B) the impacts of immigrants on indigenous populations
(C) the link between immigration and national mixes
(D) growing foreign-born populations in developed countries
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統計: A(0), B(0), C(0), D(1), E(0) #3361998
統計: A(0), B(0), C(0), D(1), E(0) #3361998