除盲人使用的（）以外，盲人所用凸出点痕的书籍、刊物、信函和文件都可作盲人读物寄递。
参考答案：特种纸张
各车型价格、销量、预计产量统计图表
在北京地区，奥拓的销售值是（）万元。
A．5.89
B．17670
C．58900
D．3000
An analyst does research about option-free bond price change due to both duration and convexity impacts. The duration of an option-free bond is 9.92, and the convexity measure for that bond is 63.8. If interest rates increase by 200 basis points, the bond's percentage price change is closest to:（）
A. -22.39%
B. -18.56%
C. -17.29%
