收益率曲线向右下方倾斜意味着在同一时点上，长期债券收益率______短期债券收益率。
A．高于 B．等于 C．低于 D．不确定
参考答案：C
—I heard a bus accident happened yesterday.
—The bus crashed. Luckily, only a few passengers were _____ injured in the traffic accident.
A．slightly
B．approximately
C．exactly
D．gradually
引起相对传入性瞳孔障碍（RAPD）的眼病不包括（）。
A.球后视神经炎
B.缺直性视神经病变
C.视神经 * * 炎
D.特发性黄斑裂孔
E.外伤性视神经病变
