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【单选题】
假定某商品价格在每季度里变化的标准差为0.65，商品的期货价格在每季度里变化的标准差为0.81，两种价格变化之间的相关系数为0.8。这时3月期合约的最佳对冲比率为（ ）A.
0.427
B.
0.518
C.
0.642
D.
0.736
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举一反三
【单选题】If a Chinese ask an Englishman this question 'Have you eaten? ', the Englishman might______.
A.
think that Chinese wants to invite him to dinner
B.
not answer the question
C.
be very happy
D.
think it has nothing to do with other people
【简答题】企业的利得和损失包括直接计人所有者权益的利得和损失以及直接计入当期利润的利得和损失。（ ）
【单选题】听力原文：W: You usually dine at this cafe, don't you? How is the food here? M: It's usually good but last night it was awful. Q: How is the food at the cafeteria? (18)
A.
It tasted bad last night.
B.
It tasted delicious last night.
C.
It was just so so.
D.
It usually tastes bad.
【单选题】The famous cooks are from European countries. Some are , others are .
A.
Englishman, German
B.
Englishmans, Germans
C.
Englishmen, Germen
D.
Englishmen, Germans
【简答题】完成对话，一空一词。 W: Do you usually hang 1 with your friends? M: Oh, sometimes. W: 2 do you usually go? M: The mall near my house. W: Do you like 3 out in the mall? M: Not at all. The air 4 fresh and it's ...
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