假设现在定义了Series对象ser: ser = pd.Series([11, 33], index=['a', 'c']) 下列说法错误的是?() A. 示例代码使用了自定义索引 B. ser的索引1对应元素11 C. ser的索引2对应元素33 D. ser的元素11和33分别对应索引a和c
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【简答题】College amounts to an attempt to fulfill a lengthy succession of goals, some of which you set for yourself and some of which are set for you by others. Realizing these goals requires that you make pla...