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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


答案:A
難度: 簡單
1F
amily chang 高三下 (2013/07/25)

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

 

09. People should be _____ enough about ..-阿摩線上測驗