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【简答题】
某投资者在5月份以4美元/盎司的价格买入1份执行价格为360美元/盎司、6月份到期的黄金看跌期货期权，以3.5美元/盎司的价格卖出1份执行价格为360美元/盎司、6月份到期的黄金看涨期货期权，以358美元/盎司的价格买入1份6月份到期的黄金期货。则在期权到期时，该投资者的净收益为（ ）美元/盎司。
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举一反三
【简答题】下列哪种植物的种子属于有胚乳种子
【单选题】The study of the phonic medium of language is defined as ______.
A.
morphology
B.
semantics
C.
phonetics
D.
phonology
【多选题】___________ are the proneers of the study of language in a sociocultural context in England.
A.
Bronislaw Malinowsky
B.
Benjamin Lee Whorf
C.
Edward Sapir
D.
John P. Firth
【简答题】P isthe study of how speakers of a language use sentences to effect successfulcommunication.
【简答题】P____ is the study of meaning in context. It is concerned with the way language is used to communicate rather than with the way language is structured.
【单选题】_____ is defined as the study of the relationship between language and mind.
A.
Semantics
B.
Pragmatics
C.
Cognitive linguistics
D.
Sociolinguistics
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