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1．在欧洲中世纪文学中，占有突出地位的文学是

A. 教会文学
B. 骑士文学
C. 市民文学
D. 史诗和谣曲

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Which one is one kind of American option?

A. Shopping Coupon
B. Movie Ticket

The following table shows the operation of margin account for a long position in two gold futures contracts. The initial margin is $6,000 per contract, or $12,000 in total; the maintenance margin is $4,500 per contract, or $9,000 in total. The contract is entered into on Day 1 at $1,650 and closed out on Day 5 at $1,630.80--------------------------------------------------------------------------Day Trade Settlement Daily Cumulative Margin account Margin price($) price($) gain($) gain($) balance($) call($)--------------------------------------------------------------------------1 1,650 12,0001 1,641.00 -1,800 -1,800 10,200 2 1,638.30 3 1,644.60 1,260 -1,080 10,920 4 1,629.90 __ 5 1,630.80 180 -3,840 12,180

An investor enters intoa short forward contract to sell 100,000 British pounds for U.S. dollars at the exchange rate of 1.4000 U.S. dollars per pound. The investor would (gain/lose) (please input the money amount) if the exchange rate at the end of contract is 1.42000.

以下不能创建一个字典的语句是

A. dict1 = {}
B. dict2 = {3:5}
C. dict3 = {[1,2,3]: "uestc"}
D. dict3 = {(1,2,3): "uestc"}