期权的买方又称为()。
A.期权的多头
B.期权的空头
C.期权的平头
D.以上均正确
参考答案:A
解析:期权的买方又称为期权的多头,期权的卖方又称为期权的空头。
You must have ________ Beyonce, and she is a very famous singer who sang a song for the 77th Annual Academy Awards (第77届奥斯卡金像奖颁奖典礼).[ ]
A. heard from
B. heard
C. heard on
D. heard about
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