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The hard, out surface of the tooth is called enamel.A、outsideB、appearanceC、out
The hard, out surface of the tooth is called enamel.A、outsideB、appearanceC、out
游客
2024-01-02
71
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问题
The hard, out surface of the tooth is called enamel.
选项
A、outside
B、appearance
C、outer
D、hiding
答案
C
解析
outside和outer均有“外部的”意思。但outside一般指物体的外表或表面,而outer指一种相对性,即相对于内部而言的外部或外表, appearance外貌,外观,hiding隐匿:在此指牙齿的外表面,是相对于内部而言的,因此选项 C为答案。
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