On the basis of the type of silk, it can be divided into _______ parts.
(A) Original
(B) Mulberry
(C) Synthetic
(D) Non-Mulberry
1
A C
2
A B C
3
A C D
4
B C D
On the basis of the type of silk, it can be divided into _______ parts.
(A) Original
(B) Mulberry
(C) Synthetic
(D) Non-Mulberry