The dichotomy postulated by many between idealism and realism is one of the standard clichés of the ongoing debate over international affairs.

A．division into two parts

B．combination of two parts

C．disparity

D．contradiction

关于埃博拉出血热，下列说法不正确的是（）

A.人群普遍易感

B.早期即可诊断

C.白细胞减少和血沉降低是其特征

D.目前无特效治疗方法

E.预后差