人际传播可分为哪几种形式()
A.个人与个人之间
B.个人与群体之间
C.群体与群体之间
D.社区人群之间
E.以上都是
参考答案:A, B, C
An analyst does research about the put-call parity. With respect to the put-call parity, which of the following positions is equal to a synthetic call position()
A. Long a put, long the underlying, and short a risk-free bond.
B. Short a put, long the underlying, and short a risk-free bond.
C. Long a put, short the underlying, and long a risk-free bond.
金融期权有内在价值,也有外在价值,后者是指( )。
A.期权内在价值超过该期权协定价格的部分B.期权市场价格超过该期权内在价值的部分C.期权内在价值超过该期权时间价值的部分D.期权市场价格低于该期权标的资产市场价格的部分