問題詳情
09. People should be _____ enough about their bleeding gums to prevent periodontal disease. Therefore, using the three-step method of self-examination- the “stopping, looking and pressing” method on a regular basis, people are likely to maintain healthy gums.
(A) vigilant
(B) valiant
(C) virulent
(D) virtuous
參考答案
答案：A
難度：適中0.684211
統計：A(52),B(6),C(5),D(3),E(0) #
個人：尚未作答書單：倒流效應Backwash Effect=回沖效應 Washback Effect
用户評論
【amily chang】評論
vigilant [ˋvɪdʒələnt] 警戒的; 警惕的valiant[ˋvæljənt]勇敢的, 英勇的virtuous 1.有道德的; 善良的; 正直的 2.貞潔的virulent 1.劇毒的; 致命的 2.充滿敵意的; 狠毒的periodontal disease.牙周病