题目内容

It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.
A.symptomB.shadowC.treatmentD.convenience
A

试题分析:考查名词辨析。A ,病症,症状;B阴影,影子; C 治疗,D方便,句意:定期对眼睛进行检查是很重要的,以便检查出任何可能的眼部疾病的征兆,这些疾病可能是没有症状的。选A。
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