3,)C 3 (CUD =)22D , C

3 , - HE THONG DE KIEM TRA TRAC NGHIEM 1 TIET CONG NGHE 11 1
Công nghệ HE THONG DE KIEM TRA TRAC NGHIEM 1 TIET CONG NGHE 11 1

3

,

)

C

3

(

C

Ud

=

2

d

,

c