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In some places leaves will fall off the trees before they change colors in the a
In some places leaves will fall off the trees before they change colors in the a
游客
2024-06-14
30
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问题
In some places leaves will fall off the trees before they change colors in the autumn. [br] Leaves show different colors other than green in the fall because the carotenoids and anthocyanins are then______.
选项
答案
unmasked
解析
根据题意和题干中的carotenoids and anthocyanins定位到第二个小标题下第2段的末句The carotenoids and anthocyanins that are present in the leaf are then unmasked and show their colors.此处需填入表语成分。题目中的Leaves show different colors other than green“叶子显现出除绿色外的其他颜色”和原文中的show their colors“(类胡萝卜素和花青素)显现出自身的颜色来”表达的实际是同一概念,故答案就是unmasked。
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