My sister studied hard at school when she was young, which contributes ________ her success in her career.

A．with

B．for

C．from

D．to

菌痢的综合治疗中最重要的是（）

A.心理治疗

B.隔离、护理

C.应用抗生素

D.静脉补液

E.应用止泻药物