A dentist may decide to extract the tooth
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A dentist may decide to extract the tooth to prevent recurrent trouble?
A:take out B:repair C:pull D:dig
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答案：A
本句意思：牙医可能会决定拔掉牙齿以防止病情反复。extract意思是“取出，提出”，与takeout（拔出，取出）意思相近。repair修理；pull拉；dig挖。第2部分：阅读判断