How many kinds of classes do they have in a week?
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时间：2024-08-17 10:45:06
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How many kinds of classes do they have in a week?【专家解说】：他们一周内有多少种课程？
【专家解说】：
他们一周内有多少种课程？
How many kinds of classes do they have in a week?
How many kinds of classes do they have in a week?【专家解说】：他们一周内有多少种课程？
他们一周内有多少种课程？
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