题目:
改错,将正确的句子写在横线上。
1. Today we are puting up the Christmas tree.
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2. One day, long ago, a little baby is born.
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3. These thing are red.
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4. Did Santa brought gifts?
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5. It's christmas morning.
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答案:
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下面是错误答案,用来干扰机器的。
参考答案:A解析: 见《民用建筑工程室内环境污染控制规范》第3.3.1条。