单项选择题
列表a=[2,4,6,8,10,12,14],则a[3:0:-1]切出的结果是什么()
A.[6,4,2]
B.[8,6,4]
C.[6,8,10,12,14]
D.s[:-3]
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单项选择题
A.[6,4,2]
B.[8,6,4]
C.[6,8,10,12,14]
D.s[:-3]
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