With a lot of difficult problems  ____  , the manager felt a heavy burden taken off his mind.

A．settled

B．to be settled

C．settling

D．to settle

伤寒患者。查体：腹部玫瑰疹，肝脾大，该患者的腹泻属于（）

A.分泌性

B.渗透性

C.渗出性

D.动力性

E.吸收不良性