Almost everyone has his own strengths and weaknesses. It is           others are weak that maybe you have a great advantage.

A．as

B．where

C．that

D．what

钩虫病的血象特点有（）

A.不同程度贫血

B.低色素性小细胞性贫血

C.网织红细胞数正常或轻度增高

D.嗜酸性粒细胞略增多

E.血清铁浓度显著降低