71. What does paragraph 1 mainly discuss?
(A) Some examples of typically American fast food
(B) The reasons why some people like fast food and others don't
(C) The substances that can be found in most types of fast food
(D) Some possible health disorders caused by fast food
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統計: A(0), B(1), C(0), D(0), E(0) #3361993
統計: A(0), B(1), C(0), D(0), E(0) #3361993