Which of the following words is most closely related to the term 'bulletin' in terms of meaning?
答案解析
A bulletin is an official notice or announcement, making Option A the closest in meaning. Option B, while related, is broader and not as specific as a bulletin. Option C refers to a guide or instruction book, and Option D is a reference book for words, both of which are unrelated to the term 'bulletin'.
正确答案：A