某客户咨询有关债券久期的问题，若其他因素不变，当债券的到期收益率较低时，债券的久期和利率敏感性（）
A．较低
B．不变
C．较高
D．不确定
参考答案：A
Our director is out. I'll have her ________ you on the matter when she's back.
A．to contact
B．contacting
C．contact
D．contacted
