there are over 60% of people who sleep more than 8 hour each night, are't there?什么意思,怎么回答

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there are over 60% of people who sleep more than 8 hour each night, are't there?什么意思,怎么回答

有超过60%的人每晚睡觉超过八个小时,不是吗?Yes,there are.对,是这样.No,there aren't.不,不是这样

有超过60%的睡眠8小时以上,每天晚上,不吗?