49. (单选题)import numpy as npprint(np.arange(1, 11))以上程序的运行结果为:

A. ls = [25, 13, 36, 1]lst = [88]lsⱣⱤnew = ls + lstprint(lsⱣⱤnew)

B. ls = [25, 13, 36, 1]lst = [88]lsⱣⱤnew = ls.extend(lst)print(lsⱣⱤnew)

C. ls = [25, 13, 36, 1]lst = [88]ls.extend(lst)print(ls)

D. ls = [25, 13, 36, 1]lst = [88]lsⱣⱤnew = ls.extend(lst)print(ls)

A. 　 TempStr

B. 　 3ⱣⱤ1

C. 　 ⱣⱤAl

D. 　 l

A. 　 \

B. 　 /

C. 　 #

D. 　 %

A. type( )

B. index( )

C. len( )

D. count( )

A. x = int(input())print(x ^ 2)

B. x = int(input())print(x * 2)

C. x = int(input())print(x ** 2)

D. x = int(input())print(x * x)

A. 　 字典

B. 　 列表

C. 　 字典中的键

D. 　 集合(set类型)

A. print(s[3:5]) # 输出 lo

B. print(s[5:3]) # 输出空字符串

C. print(s[::-1]) # 输出!dlrow olleH

D. print(s[-1::-1]) # 输出!dlrow olleH

A. s = {}

B. s = set()

C. s = ()

D. s = dict()