对企业未来的管理活动进行筹划和安排是管理的()职能。
A、激励
B、计划
C、控制
D、指挥
参考答案:B
— _____ the candle is!
— Thank you for saying so! It took me three days to find it in the shop. [ ]
A. How useless
B. Such a nice gift
C. What a useless thing
D. What a nice gift
标的物价格波动率与期权价格之间存在什么关系?