债券基金投资风格主要依据基金所持债券的( )来划分。
A.平均到期日
B.久期
C.信用等级
D.平均利率
参考答案:B,C
解析: 熟悉债券基金的类型。见教材第二章第三节,P35。
— Putting on a happy face not only helps us make friends but also makes us feel better.
— _______. [ ]
A. I can't agree with you more.
B. It's up to you.
C. It's my pleasure.
D. Don't mention it.
油浸式变压器(电抗器)精益化评价细则要求:对于单相变压器,同组设备不同相别温度差应小于()K。
A.2
B.5
C.10
D.15