期权投资达到盈亏平衡时在买入看涨期权中商品的市场价格等于（）。
参考答案：履约价格加权利金
—Did you watch the football match yesterday?
—Yes,I did. You know,my brother ___________ in the match.[ ]
A. is playing
B. was playing
C. has played
D. will play
住院病人信息采集质控工作属于（）。
A.全面质量监控
B.环节质量监控
C.终末质量监控
D.流程质量监控
E.中期质量监控
