题目内容

简述金融期货交易的风险防范机制。

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？Write a memo to your company's department heads:
？explaining why you looked for a new supplier.
？saying who the new supplier is.
？asking for feedback about the goods that they supply.
？Write 40—50 words.

What does the author observe in the supermarket？

There is a misconception among consumers that, if they want to pick out tile best products, they should _______.

简述总体设计与详细设计的区别。