cau dap an
1 d
2 b
3 a
4 c
5 a
6 a
7 a
8 a
9 c
10 b
11 b
12 c
13 d
14 c
15 b
16 c
17 d
18 c
19 b
20 a
21 b
22 a
23 d
24 d
25 b
26 a
27 a
28 d
29 b
30 c
31 a
32 a
33 b
34 d
35 d
36 a
37 c
38 d
39 b
40 d
41 a
42 d
43 d
44 c
45 b
46 d
47 d
48 b
49 d
50 a
51 c
52 d
53 c
54 b
55 d
56 d
57 c
58 c
59 a
60 a
61 c
62 d
63 a
64 d
65 d
66 d
67 d
68 c
69 b
70 d
chac' co' nhiu` sai sot'!gio den' ngay` kiem tra.ai bit' gi` them thi bo sung vao`!chinh? lai dum` nha!