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 p

When light illuminates an object, part of it is absorbed and part reflected, the ________lightness of an object depends on the p

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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 动词辨义。光线部分被吸收部分被反射，而被反射的那部分之所以知道反射回来了，就是因为能被人们察觉到，perceive意为“觉察”，如：perceive by the nose(用鼻嗅出)，符合题意。denote意为“所指”，如：A flashing yellow light denotes caution．(闪烁的黄灯表示警告。)embody意为“体现出来的”，如：laws that embody a people’s values(加入了体现人的价值的法律)；insulate意为“绝缘，隔绝”，如：The language lab is well insulated against noise．(语音室隔音很好。)
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大学英语六级

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