填单位名称：一间礼堂的面积大约是300（ ）.
填单位名称：一间礼堂的面积大约是300（ ）.
数学人气：568 ℃时间：2020-05-20 10:17:28
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填单位名称：一间礼堂的面积大约是300（平方米）.
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