填空题

Catherine is ______ (clever) than the other girls in the class.

【参考答案】

cleverer
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单项选择题
A. Husband and wife. B. Shop assistant and customer. C. Boss and secretary. D. Father and daughter.
A. Husband and wife. B. Shop assistant and customer.
C. Boss and secretary. D. Father and daughter.
填空题
What is color Why do some objects look red, others green, still others blue Color is caused by (11) light rays. We see color because objects reflect light. Something that is red reflects (12) red light. It reflects a little green or blue light, too, but we do not see it. In the same way, a green object reflects mostly green light. White objects reflect (13) of light. Black objects do not reflect any light. What happens to the colors of light that are not reflected They are absorbed by the object. The (14) the color, the less light is reflected and the more light is absorbed. Light that is absorbed is (15) heat. For this reason, dark-colored clothes are wanner in the sunlight than lighter-colored clothes.
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