题干
— _________ will the 8th English Festival be held in ShuRen?
— In one week.
A：How soon
B：How far
C：How often
D：How long
答案(点此获取答案解析）
A
— _________ will the 8th English Festival be held in ShuRen?
— In one week.
A：How soon
B：How far
C：How often
D：How long
，若这个样本的容量为n，平均数为 
，则n-2 
CH3 ②
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