假设有两种国债券，债券A的到期期限为5年，息票率为6%；债券B的到期期限为5年，息票率为3%。上述两种债券的面值相同，均在每年年末支付利息。从理论上讲，当利率发生变化时，（）。
A．无法比较债券B和债券A的价格变化幅度的大小
B．债券B的价格变化幅度等于债券A的价格变化幅度
C．债券B的价格变化幅度大于债券A的价格变化幅度
D．债券B的价格变化幅度小于债券A的价格变化幅度
参考答案：C
解析：
债券的票面利率越低，债券价格的易变性也就越大。在市场利率提高的时候，票面利率较低的债券的价格下降较快。但是，当市场利率下降时，它们的增值潜力也很大。
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| My father often works very hard. And he doesn't often go to the 1 . Here I will tell you a 2 story about him. One afternoon, he 3 a ticket for the 7 o'clock film under the glass on his desk. He thought he happened to (碰巧) 4 work to do that evening and it was quite wonderful to pass the evening at the cinema. He came back home at 6:30 and 5 finished his supper. Then he said good.bye and left. But to our surprise, he came back about half an hour later. I asked what was the matter. He smiled and told us about what had happened. 6 my father was sitting in his seat,a woman came and said that the seat was hers. My father was surprised. He 7 the ticket and looked at it carefully. It was Row 17, Seat 3.And then he looked at the seat. It was the same. 8 he asked the woman to have a careful look at her ticket again and to their surprise the seat shown on it was Row 17, Seat 3, too. Why? What's the matter? While they were wondering, suddenly the woman said, "The colors of the tickets are 9 . "They looked at the tickets more carefully. After a while my father said, "Oh, I'm 10 . My ticket is for the film a month ago!" | ||||
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