The boss took no notice of the suggestion given by the clerk that the new technology ____ the problems on conveying the products.

A．be applied to solve

B．be applied to solving

C．must be applied to solving

D．must be applied to solve

贫血、黄疸和脾肿大最可能是下列哪种疾病的临床表现（）

A.血红蛋白病

B.再生障碍性贫血

C.再生障碍危象

D.骨髓纤维化

E.慢性失血性贫血