下列哪个指标不能用来衡量债券的收益性( )
A.即期收益率
B.到期收益率
C.提前赎回收益率
D.债券价格波动率
参考答案:D
解析: 价格波动率是用来衡量风险性的。
Life is just like a journey with ______ unknown destination, during which people can meet with ______ barriers of all kinds.
A./; the
B.the; /
C.an; the
D.an; /
急性呼吸窘迫综合征时产生死腔样通气的因素是()。
A.肺出血
B.肺水肿
C.肺血管收缩
D.肺微血栓形成
E.小气道阻塞