可赎回债券往往规定有赎回保护期，常见的赎回保护期是发行后的()。
A. 1-5年
B. 3-5年
C. 5-l0年
D. 8-l0年
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A．Keep traditional students from learning.B．Provide role models for younger students.C
A. Keep traditional students from learning.
B. Provide role models for younger students.
C. Should be forbidden to take college classes.
D. Are very good at their studies.
公司债券的违约风险一般通过()标示。
A. 信用评级
B. 信用评级表
C. 信用等级
D. 投资等级
A．Because they have to.B．Because they want to.C．Because their children want them to.D．
A. Because they have to.
Because they want to.
C. Because their children want them to.
D. Because they don't know how to spend their spare time.
A．People in the dark brown room walked more quickly.B．People spent more time in the wh
A. People in the dark brown room walked more quickly.
B. People spent more time in the white room than in the dark room.
C. Dark brown stimulated more but shorter activity.
Dark brown stimulated more and longer activity.
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