9.The author mentions “Baring the teeth in a hostile way” in paragraph 1 in order to _________.
(A)differentiate one possible meaning of a particular facial expression from other meanings of it
(B) support Darwin’s theory of evolution
(C) provide an example of a facial expression whose meaning is widely understood
(D)contrast a facial expression that is easily understood with other facial expressions
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統計: A(2), B(0), C(5), D(0), E(0) #3293649
統計: A(2), B(0), C(5), D(0), E(0) #3293649