请选择DCBA:G3w.d2y什么树被称为活化石?-i2@5g4b;t:K:B
A.铁树-i2@5g4b;t:K:B
B.梧桐树-i2@5g4b;t:K:B
C.槐树-i2@5g4b;t:K:B
D.银杏树-i2@5g4b;t:K:B