小儿药物剂量计算，年长儿按体重计算，如剂量已超过成人量，则应以成人量______用药。
参考答案：为限
Which of the following bonds has the shortest duration A bond with a:（）
A. 20-year maturity, 6 percent coupon rate.
B. 10-year maturity, 6 percent coupon rate.
C. 10-year maturity, 10 percent coupon rate.
