If people can’t tell all kinds of colors, we can say they are color-blind. Most color-blind people can see【T1】______ but cannot

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问题     If people can’t tell all kinds of colors, we can say they are color-blind. Most color-blind people can see【T1】______ but cannot tell red from green. Very few people are blind to all kinds of colors, but they may see black and white. It’s【T2】______that many color-blind people don’t think they are color-blind. Well, the reason is that they don’t know that they can’t see or name the real colors. This can be dangerous when a color-blind person is passing the【T3】______Some people are【T4】______color-blind.
    And though doctors have tested many times on the reason for color-blindness, there is still no good reason for it at all. So there is still no way to【T5】______the color-blindness.
【T2】

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答案interesting

解析 空格位于系动词is后,可知应填入形容词或名词作表语。根据录音填入interesting“有趣的”。
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