
B24.2-Tin10
Authored by TRUC Ng
Instructional Technology
12th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Xâu rỗng là xâu có độ dài bằng bao nhiêu?
1.
2.
0.
3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để biết độ dài của xâu s ta dùng hàm gì?
str(s).
len(s).
length(s).
s.len().
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có bao nhiêu xâu kí tự nào hợp lệ?
1) “123_@##”
2) “hoa hau”
3) “346h7g84jd”
4) python
5) “01028475”
6) 123456
5.
6.
4.
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho s = "123456abcdefg", s1 = "124", s2 = "235", s3 = "ab", s4 = "56" + s3 Có bao nhiêu biểu thức lôgic sau đúng?
1) s1 in s.
2) s2 in s.
3) s3 in s.
4) s4 in s.
1.
2.
3.
4.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của chương trình sau là bao nhiêu?
>>> s = "abcdefg"
>>> print(s[2])
'c'.
'b'.
'a'.
'd'.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biểu thức sau cho kết quả đúng hay sai?
S1 = "12345"
S2 = "3e4r45"
S3 = "45"
S3 in S1
S3 in S2
True, False.
True, True.
False, False.
False, True.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chương trình sau giải quyết bài toán gì?
n = input("Nhập n")
s = "" for i in range(n):
if i % 2 == 0:
s. append(i)
print(s)
In ra một chuỗi các số từ 0 tới n.
Chương trình bị lỗi.
In ra một chuỗi các số lẻ từ 0 đến n.
In ra một chuỗi các số chẵn từ 0 đến n - 1.
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