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Discuss with you partner on whether to follow a policy of free trade or selected protectionism· What is free trade· What is state of autarky
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· You are the Customer Service Manager in a telemobile company who has received a call from a customer complaining about the delay of delivery.· Write a memo to your secretary.· Telling her about the claim.· Mentioning the serial number of the order and date of delivery.· Asking for relevant files and the duplicate invoice.· Write 40—50 words on a separate sheet.
39（）
37（）
表示弱酸或弱酸碱性药物在一定pH条件下分子型（离子型）与离子型（分子型）的比例（）.
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