“How does he make     living”?

As   matter of fact, He is a policeman.

A． a，a

B． a, the

C． the, a

D． the, the

出血性疾病

A．咯血颜色鲜红

B．铁锈色血痰

C．砖红色胶冻样粘痰

D．粉红色乳样痰

E．粉红色浆液性泡沫样痰