______ I already know what career I want to follow.

A．Young as I am

B．I am as young

C．As I am young

D．As young I am

肿瘤的颜色与下列因素无关的是？（）

A.是否含有色素

B.组织来源，实质、间质的多少

C.继发改变

D.含血量多少

E.肿瘤的生长时间