助行器使用的护理()
A.加强心理疏导
B.选择适当的助行器
C.预防压疮
D.训练患者行走的正确步态
E.用步行式助行架时迈步应靠近步行架
参考答案:A, B, C, D
—Have you visited the museum?
—No, I _____. [ ]
A. have
B. haven't
C. has
An investor owns an annual-pay bond that matures in five years with a 5% COUpon rate and a $1000 face value. If the discount rate is 8%, the value of the bond is closest to:()
A. $878
B. $880
C. $1081