It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.
A．shadowB．similarityC．sampleD．symptom
D

考點分析： 名詞辨析。A陰影B 相似C樣品D征兆。根據(jù)句意，disease 帶有一個定從，并且that 在定從中做主語，句意為定期的檢查你的眼部是很重要的，因為這種眼疾可能沒有任何的征兆。從分析句子成分入手，來判斷其意思。
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