He knew the problem was serious and promised to look into it ____ he reached office.[ ]

A. at that moment        

B. for that moment    

C. soon    

D. immediately

湿温发热口渴，胸痞腹胀，肢酸倦怠，咽肿溺赤，苔黄腻，其病机为（）

A.湿热交蒸脾胃

B.湿浊困阻中焦

C.温热兼湿，困阻中焦

D.湿热交蒸，酿毒上泛

E.寒湿交杂，聚而成毒