KHẢO SÁT CHẤT LƯỢNG HỌC SINH LỚP 12 NĂM 2021 - MƠN TỐN
ĐÁP ÁN
Câu
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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17
18
19
20
21
22
23
24
25
26
101
A
B
A
C
C
B
C
C
C
A
C
C
D
B
C
A
B
A
B
C
B
A
A
B
C
D
102
B
D
B
A
B
C
C
B
A
A
D
B
B
A
B
D
D
D
D
A
A
A
D
A
D
A
103
A
B
C
B
A
C
A
C
C
B
D
B
B
A
B
A
A
C
B
A
D
C
D
C
C
A
104
D
D
D
D
C
D
C
A
B
A
A
A
B
A
B
B
B
C
A
B
A
D
A
D
D
B
105
D
A
D
B
C
D
A
A
D
B
A
C
C
C
D
C
C
B
A
A
C
D
A
D
A
D
106
B
A
A
B
A
C
B
B
C
B
C
C
C
B
A
C
B
A
C
C
A
C
A
A
C
B
107
A
B
D
A
A
C
B
C
D
C
D
B
B
A
D
D
B
A
D
A
B
B
D
A
A
C
108
A
C
C
D
D
C
D
B
A
A
D
D
D
C
D
C
C
C
A
A
A
A
A
A
D
C
109
A
A
C
A
B
B
A
A
B
A
C
B
C
C
B
C
A
C
C
C
A
C
B
C
C
B
110
B
A
D
A
B
B
A
A
C
D
D
B
B
A
B
A
A
D
A
D
C
B
B
D
D
B
111
A
D
D
C
B
C
B
A
C
D
D
B
B
B
B
A
A
A
B
C
A
B
A
D
B
D
MÃ ĐỀ
112 113
D B
A D
D B
B C
A A
B D
A C
C A
A D
B D
A A
D A
A C
D A
C D
D C
B D
C D
B C
A A
A B
B B
C B
B C
B A
A D
114
C
D
A
B
A
D
C
D
A
A
C
D
C
B
B
C
A
C
A
D
D
C
A
A
D
A
115
B
B
C
C
A
A
C
A
C
A
A
B
A
C
B
D
B
B
D
A
D
A
C
B
D
D
116
C
C
A
D
A
C
A
D
A
B
D
C
B
A
C
A
B
B
B
B
C
C
B
C
D
A
117
A
B
B
A
C
B
B
C
A
C
B
A
C
C
B
B
B
A
A
A
C
D
D
D
C
B
118
B
A
A
D
A
B
D
A
B
C
B
B
A
D
D
A
C
A
D
B
D
B
C
B
D
B
119
A
D
A
A
C
C
C
D
A
D
B
C
B
C
C
B
A
D
A
C
C
A
B
A
B
A
120
C
A
D
C
C
A
A
C
A
C
A
B
D
A
A
C
A
C
D
D
D
D
A
C
D
B
121
D
B
C
C
C
C
A
A
B
C
D
A
D
B
D
A
B
C
B
D
D
A
B
C
A
D
122
C
A
B
D
B
B
A
B
D
A
D
C
D
D
B
B
D
B
A
A
A
D
A
D
D
D
123
A
A
B
B
B
C
A
B
B
D
C
A
D
A
D
B
C
D
D
D
A
D
B
B
B
C
124
A
A
A
B
D
D
A
A
A
B
A
C
D
D
C
C
C
D
C
A
C
A
D
C
C
D