单项选择题
A.开盘价 B.收盘价 C.最高价 D.最低价
A.2150.24 B.3078.57 C.2552.84 D.3257.68
A.票面利率 B.投资人要求的必要报酬率 C.债券的面值 D.债券的买价
A.9% B.11% C.10% D.12%
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