You are currently holding a portfolio of bonds. Interest rates are expected to increase over the next few months. In order to protect your investment, your bond portfolio should contain bonds with the following characteristics:______.
A. low convexity and low coupons
B. low convexity and high duration
C. high convexity and high coupons
D. high duration and high convexity
Which of the following interest-rate risk management products requires the buyer to pay a
A. Swap
B. Treasury bond future
Cap
D. FRA
30岁女性,不孕症,继发进行性痛经2年,多次测BBT呈双相型。检查:阴道后穹窿有一直径1cm触痛结节,子宫大小正常,后位,不活动,无压痛,右卵巢稍增大,固定,压痛()。
此患者不育的原因可能是
A. 无卵泡发育
B. 盆腔炎性粘连
C. 子宫内膜异位症
D. 黄体功能不足
E. 子宫内膜发育不良