| 摘 要： | Scientists think that many-perhaps most-animals can notsee colors.The world is black and white to them.To find out if dogs could see colors,scientist gave dogsfood every time they played a certain piece of music.The dogsgot ready to eat only when they heard this piece of music.They did not get ready to eat when they heard other pieces ofmusic.Then the scientists gave the dogs food every time theyshowed them a certain color.The dogs got ready to eat whenthey saw this color.The scientists then…
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