Bài Làm:
1 |
D |
21 |
C |
2 |
B |
22 |
C |
3 |
C |
23 |
D |
4 |
D |
24 |
C |
5 |
C |
25 |
A |
6 |
D |
26 |
D |
7 |
D |
27 |
C |
8 |
C |
28 |
A |
9 |
C |
29 |
D |
10 |
A |
30 |
D |
11 |
B |
31 |
C |
12 |
D |
32 |
B |
13 |
A |
33 |
C |
14 |
C |
34 |
B |
15 |
B |
35 |
B |
16 |
A |
36 |
B |
17 |
C |
37 |
D |
18 |
B |
38 |
D |
19 |
A |
39 |
D |
20 |
B |
40 |
A |