患者男，40岁。7天前患上呼吸道感染，进行性四肢无力3天，呛咳1天。体检：神志清醒，双侧提腭差，咽反射消失，颈软，四肢肌张力低，腱反射阴性；双侧肘膝以下针刺觉减退，克氏征阳性。

下列治疗措施比较合适的是（）

A.静脉滴注氯化钾

B.静脉滴注环磷酰胺

C.静脉滴注抗生素

D.静脉滴注地塞米松

E.静脉滴注复方丹参

--- Do you know Cindy was famous at_______ very young age.

--- Yes. But she died young. She died at_______ age of 33.

A．a; an

B．a; the

C．the; the

D．the; an