龋齿充填后近期出现激发痛和自发痛,多数是由于
A.充填物过高,形成早接触B.未恢复接触点或形成颈部悬突C.备洞过程中产热过多D.继发龋伴牙髓炎E.充填物压得不紧
参考答案:C
Which of the following statements concerning the effects of interest rate volatility on bonds with embedded options is FALSE()
A. As yield volatility increases, the value of callable bonds decreases.
B. A putable bond’s value is its straight bond value plus the value of the embedded put option.
C. A callable bond’s value is its straight bond value plus the value of the embedded call option.
对于一些患绝症的患者,社会工作者应当遵循( )原则介入行动。
A.个别化B.特殊化C.人性化D.服务对象自决