Python语言程序设计（全英）答案2023

第三章测试

1.Which one description of condition in the followings is correct? ( )
A:The condition 24＜=28＜25 is legal, and the output is False
B:The condition 35＜=45＜75 is legal, and the output is False
C:The condition 24＜=28＜25 is illegal
D:The condition 24＜=28＜25 is legal, and the output is True

答案:A
2.

The output of the following program is? (   )

A:Python
B:None
C:python
D:t
3.

 for var in ___: (   )
 

A:range(0,10)
B:13.5
C:[1,2,3]
D:"Hello"
4.

After the following program is executed, the value of s is？(   )

A:19
B:47
C:46
D:9
5.

Which is the output of the following code?a = 30
b = 1
if a ＞=10:
a = 20
elif a＞=20:
a = 30
elif a＞=30:
b = a
else:
b = 0
print("a=",a,"b=",b) （ ）

A:a=20, b=20 B:a=30, b=30 C:a=20, b=1 D:a=30, b=1