A、Because they are the primary colors for cars and trucks. B、Because they are brighter than other colors. C、Because they help im

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问题  
As a normal person, you see colors everywhere so long as you have good eyesight. In fact, color plays an essential role in our life. For example, color is used to communicate life-saving information. To the driver of a vehicle, the green color means "go" and the red color means "stop". You should always pull up when the traffic light turns red. Besides, color can irritate or soothe your eyes, raise your appetite or even change your mood. A delicious meal with appropriate colors can certainly make your mouth watering. Good colors also help us in many other ways. Statistics show that in sports competition, a team wearing red has a higher chance of winning. Of course, it is largely due to the psychology of wearing red. Luck and ability can be more important. For animals, colors reflect their environment and their characteristics. For instance, a male peacock has its tail feathers of bright colors to win the attention of female peacocks. A tree frog can be so green as to indicate its poisonous nature. So don’t eat it or you might die. A wasp with its bright yellow color may warn us that it has a sting and it is not afraid to use that sting.
    People often think that a rainbow is the most colorful, but for our artists, all they need are three colors, namely, red, blue and yellow. They are called the primary colors—colors that cannot be made by mixing others together. And our artists can mix them together to create any color in the rainbow and hundreds of other shades in making art.
Question No. 23 Why are green and red colors important to drivers?
Question No. 24 According to statistics, what team has a higher chance of winning in sports competition?
Question No. 25 Which animal has green color that warns us of its poisonous nature?
Question No. 26 What is a primary color?

选项 A、Because they are the primary colors for cars and trucks.
B、Because they are brighter than other colors.
C、Because they help improving driving skills.
D、Because they communicate life-saving information.

答案D

解析
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