D, 2.D, 3.C, 4.D, 5.B, 6.B, 7.A, 8.C, 9.C, 10.B, 1B, 12.D, 13.D,

1. - DE TRAC NGHIEM S780 CAU
DE TRAC NGHIEM S780 CAU

1.d,

2.d,

3.c,

4.d,

5.b,

6.b,

7.a,

8.c,

9.c,

10.b, 11.b, 12.d, 13.d,