36. According to the article, why do you blink your eyes?
(A) to protect them from dirt and dust
(B) to protect them from a bright light
(C) to protect them from irritating substances
(D) all of the above
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統計: A(8), B(9), C(2), D(205), E(0) #939742
統計: A(8), B(9), C(2), D(205), E(0) #939742