5.11Whichofthefollowingloopscorrectlycomputes1/2+2/3+3/4+...+99/100?A:sum=0foriinrange(1,99):sum+=i/(i+1)print("Sumis",sum)B:sum=0foriinrange(1,100):sum+=i/(i+1)print("Sumis",sum)C:sum=0foriinrange(1.0,99.0):sum+=i/(i+1)print("Sumis",sum)D:sum=0foriinrange(1.0,100.0):sum+=i/(i+1)print("Sumis",sum)

已知id(ls1)=4404896968，以下程序的输出结果是：()ls1=[1,2,3,4,5]ls2=ls1ls3=ls1.copy()print(id(ls2),id(ls3))

以下程序的输出结果是：()img1=[12,34,56,78]img2=[1,2,3,4,5]defdispl():print(img1)defmodi():img1=img2modi()displ()

下面代码的输出结果是()a=[[1,2,3],[4,5,6],[7,8,9]]s=0forcina:forjinrange(3):s+=c[j]print(s)

下面代码的执行结果是()ls=[[1,2,3],[[4,5],6],[7,8]]print(len(ls))

关于以下程序输出的两个值的描述正确的是()。da=[1,2,3]print(id(da))defgetda(st):fa=da.copy()print(id(fa))getda(da)

以下程序的输出结果是()。deffun1(a,b,*args):print(a)print(b)print(args)fun1(1,2,3,4,5,6)

29 Whatistheresultofevaluating2+2**3/2?()

1 Whatwillbedisplayedbythefollowingcode?()m = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]print(m[0][0])

2 Assumem=[[1,2,3],[4,5,6],[7,8,9]],whatarelen(m)?()

3 Assumem=[[1,2,3],[4,5,6],[7,8,9]],whatarelen(m[0])?()

7 Assumex=((1,2),(3,4,5),(5,6,5,9)),whatarelen(x)arelen(x[0])?()

8 Assumex=[[1,2],[3,4,5],[5,6,5,9]],whatarelen(x[0]),len(x[1]),andlen(x[2])?()

12Whatwillbedisplayedbythefollowingcode?()matrix=[[1,2,3,4],[4,5,6,7],[8,9,10,11],[12,13,14,15]]foriinrange(0,4):print(matrix[i][1],end="")

13Whatwillbedisplayedbythefollowingcode?()matrix=[[1,2,3,4],[4,5,6,7],[8,9,10,11],[12,13,14,15]]foriinrange(0,4):print(matrix[1][i],end="")