單項選擇題

字典d={’abc’：123，’def’：456，’ghi’：789}，len（d）的結(jié)果是：（）

A.3
B.6
C.9
D.12

你可能感興趣的試題

表達式3 and not 5的值為Ture.

答案：錯誤

表達式3<5>2的值為True.

答案：正確

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