3. Some experts have suggested cracking knuckles is harmful and may cause arthritis, but other
experts_________ the argument, saying that the habit is neither harnful nor beneficial to your health.
(A) refuted
(B) imposed
(C) pledged
(D) deduced
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統計: A(62), B(12), C(7), D(7), E(0) #3056728
統計: A(62), B(12), C(7), D(7), E(0) #3056728