2. 外语
  3. When light illuminates an object, part of it is absorbed and part reflected)the______lightness of an object depends on the propo

When light illuminates an object, part of it is absorbed and part reflected)the______lightness of an object depends on the propo

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问题 When light illuminates an object, part of it is absorbed and part reflected)the______lightness of an object depends on the proportion of light that is reflected.
选项 A、denoted
B、embodied
C、insulated
D、perceived
答案D
解析 各项含义是：denoted指示，表示；embodied包含；insulated隔离；perceived察觉。空格所在处文字的含义是：一个物体所被人感知的亮度由其所反射的光决定。
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