题目内容
A/An _____________ can be exercised at any time up to the expiration date of the contract.
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The term “___________________” in financial markets refers to any instrument or contract that derives its value from another underlying asset, instruments or contracts.
options 中文意思为：
A _____________is a market for securities (debt or equity), where business enterprises (companies) and governments can raise long-term funds.
______________ are securities that represent a debt owed by the issuer to the investor.
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