信函语气与礼貌策略 — 国际贸易填空题
题目
某外贸公司收到客户投诉货损的信件，需回复。以下四句中，语气最符合英文商务信函'You-attitude（对方立场）与礼貌策略'原则的是：A. You must have damaged the goods yourselves. B. We regret to learn that part of your order arrived damaged, and we will send replacements immediately. C. It is impossible that our products could be damaged. D. You obviously mishandled the shipment. 应选____（填字母）。