The happiest people are not those ________ have the best of everything, but ________ make the best out of everything.

A．who, that

B．who, who

C．that, who

D．that, that

慢性支气管炎（）

A.午后低热、盗汗、咳嗽、咳痰、痰中带血

B.咳嗽、咳痰伴喘息每年持续3个月，连续2年以上

C.寒战、高热、胸痛、铁锈色痰

D.劳力性呼吸困难伴咳嗽、咯血

E.慢性咳嗽、大量脓痰，反复咯血