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Trac nghiem Bai 24 Xau ky tu

Authored by Thành Nguyễn

Computers

10th Grade

Used 30+ times

Trac nghiem Bai 24 Xau ky tu
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

s có chứa chữ số

s không có chứa chữ số

2

19

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

19

18

20

21

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Xâu kí tự nào sau đây không hợp lệ?

11111111 = 256

‘123&*()+-ABC’

‘1010110&0101001’

‘Tây nguyên’

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cho s1 = “abc”, s2 = “ababcabca”. Các biểu thức sau đây biểu thức nào cho kết quả sai?

“abc123” in s2

s1 in s2

s1 + s1 in s2

“abcabca” in s2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Xâu kí tự ‘123&*()+-ABC’ có độ dài là:

12

11

10

9

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

4

5

6

3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

1 7 2

8 1 7

8 1 7 2

7 2 3

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