判断题
The abbreviations enc or encl means there are enclosures with the letter.
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判断题 In the USA, it is correct to open a letter with the salutation Gentlemen.
判断题 If you were writing to a Knight whose name was Sir Roger Dumont, you would open the letter Dear Sir Dumont.
判断题 The head of a company in the UK is known as ’The President’.