After a few weeks' experience, apprentice jewelers can usually begin to discriminate, though not with absolute certainty, genuine diamonds from imitation diamonds.
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Agenuine diamonds from imitation diamonds
分析该选项
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Bgenuine diamonds apart from imitations
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Cbetween genuine diamonds and imitation diamonds
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Dgenuine diamonds and imitation diamonds
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Ewhether diamonds are imitation or genuine
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显示答案
正确答案: C