右图是为2008北京奥运会而建造的国家游泳中心“水立方”,其透明

右图是为2008北京奥运会而建造的国家游泳中心水立方,其透明薄膜外衣上点缀了无数白色 的亮点,它们被称为镀点。北京奥运会举办时正 值盛夏,镀点能改变光线的方向,将光线挡在场 馆外。镀点对外界阳光的主要作用是:

A.反射太阳光,遵循光的反射定律; B.反射太阳光,不遵循光的反射定律;

C.折射太阳光,遵循光的折射定律;  D.折射太阳光,不遵循光的折射定律.

答案

A

相关题目

地球上最长的一条纬线是(  ) A北极圈       B、北回归
地球上最长的一条纬线是(  ) A北极圈       B、北回归线        C、本初子午线       D、赤道
下列情形,合同应当采用书面形式订立的有(    ) ①当事
下列情形,合同应当采用书面形式订立的有(    ) ①当事人约定采用书面形式  ②法律规定应当采用书面形式  ③行政法规规定应当采用书面形式 
如图X、Y、A、B、C均为短周期主族元素,其中只有一种是金属
如图X、Y、A、B、C均为短周期主族元素,其中只有一种是金属元素,则下列说法错误的是( ) XA YC B A.原子半径大小:Y>C>X>A B.Y和B形成的化合物
Look! The teacher along with his students ________ games on the ground in the s
Look! The teacher along with his students ________ games on the ground in the setting sun. A.play                                 B.playing C.is playing     
In 2004,the World Health Organization,WHO,warned of a possible outbreak of
In 2004,the World Health Organization,WHO,warned of a possible outbreak of another serious disease which may be even more deadly than SARS.The WHO believes that it is likely that bird flu will
. Between the two rows of trees ____ the teaching building. A.stand      
. Between the two rows of trees ____ the teaching building. A.stand        B.stands     C.standing         D.are
在实数5、、、中,无理数是(      ).A.5B.C.D.
在实数5、、、中,无理数是(      ).A.5B.C.D.
The villagers, _________ had been damaged by the flood, were given help by the R
The villagers, _________ had been damaged by the flood, were given help by the Red Cross. A. all of their homes   B. all their homes  C. whose all homes  D. all of whose homes

最新题目