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以下代码的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ s=[4,2,9,1] s.insert(2,3) print(s)

A. [4,2,3,9,1]
B. [4,2,9,2,1]
C. [4,3,2,9,1]
D. [4,2,9,1,2,3]

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以下代码的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ ls=[[1,2,3],[[4,5],6],[7,8]] print(len(ls))

A. 3
B. 8
C. 1
D. 4

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以下代码的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ ls=["2020","20.20","Python"] ls.append(2020) ls.append([2020,"2020"]) print(ls)

A. ['2020','20.20','Python',2020,['2020']]
B. ['2020','20.20','Python',2020]
C. ['2020','20.20','Python',2020,[2020,'2020']]
D. ['2020','20.20','Python',2020,2020,'2020']

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以下程序的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ x=[90,87,93] y=("Aele","Bob","lala") z={} foriinrange(len(x)): z[i]=list(zip(x,y)) print(z)

A. {0:[(90,'Aele'),(87,'Bob'),(93,'lala')],1:[(90,'Aele'),(87,'Bob'),(93,'lala')],2:[(90,'Aele'),(87,'Bob'),(93,'lala')]}
B. {0:[90,'Aele'],1:[87,'Bob'],2:[93,'lala']}
C. {0:(90,'Aele'),1:(87,'Bob'),2:(93,'lala')}
D. {0:([90,87,93],('Aele','Bob','lala')),1:([90,87,93],('Aele','Bob','lala')),2:([90,87,93],('Aele','Bob','lala'))}

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列表变量x=['12','34']，执行语句print("'".join(x))，输出的结果是：‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪

A. '12'34'
B. 12'34
C. '12'34
D. 12'34’

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以下代码的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ s=[4,2,9,1] s.insert(2,3) print(s)

A. [4,2,3,9,1] B. [4,2,9,2,1] C. [4,3,2,9,1] D. [4,2,9,1,2,3]

以下代码的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ ls=[[1,2,3],[[4,5],6],[7,8]] print(len(ls))

以下代码的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ ls=["2020","20.20","Python"] ls.append(2020) ls.append([2020,"2020"]) print(ls)

以下程序的输出结果是______。‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪ x=[90,87,93] y=("Aele","Bob","lala") z={} foriinrange(len(x)): z[i]=list(zip(x,y)) print(z)

列表变量x=['12','34']，执行语句print("'".join(x))，输出的结果是：‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪

A. [4,2,3,9,1]
B. [4,2,9,2,1]
C. [4,3,2,9,1]
D. [4,2,9,1,2,3]