多项选择题
In Chinese literature, which of the followings are often used as a metaphor for teachers? A.
Silkworm. B.
Candle. C.
Fallen flowers D.
Flying birds
In Chinese literature, which of the followings are often used as a metaphor for teachers? A.
Silkworm. B.
Candle. C.
Fallen flowers D.
Flying birds