问题
单项选择题
光的三原色是（）。
A．红黄蓝
B．红黄绿
C．黄蓝绿
D．红绿蓝
答案
参考答案：D
解析：光的三原色，它就是RGB （红绿蓝）.红色与绿色经过一定比例混合后就是黄色了.所以黄色不能称之为三原色.
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光的三原色是（）。
A．红黄蓝
B．红黄绿
C．黄蓝绿
D．红绿蓝
参考答案：D
解析：光的三原色，它就是RGB （红绿蓝）.红色与绿色经过一定比例混合后就是黄色了.所以黄色不能称之为三原色.
用方框中所给单词的适当形式填空，使短文通顺、正确、连贯 (每个单词限用一次)。
小题1: that people who studied music as a child are able to remember words much better than people 小题2: musical training. One experiment was 小题3: with sixty female American college students. A similar study was carried out with ninety boys in Hongkong of China. In both cases, students had to 小题4:words and pictures. 小题5: they were asked how many they remembered. Scientists found that students 小题6: studied music were better at remembering words, but both groups remembered the pictures equally well. Perhaps it is 小题7:to use your imagination to associate(联想) pictures with things in your life. Also, you can make up stories for pictures.Scientists explain the 小题8: by saying that both musical memory and verbal (written or spoken words) memory are located in the left side of the brain. Visual memory, the kind needed for pictures, is located in 小题9: half of the brain. Since verbal memory is very important for success at school, researchers now think that taking music lessons can give you a real academic advantage. In fact, when the students were tested a year 小题10: , the students who had stopped taking lessons still did well on verbal memory. Maybe it’s time to give music lessons a try. |