Explain the difference between initialisms and acronyms with the example words VOA, AIDS,N-bomb, UFO. CORE, ID.
【正确答案】：Initialisms are words pronounced letter by letter, e.g. VOA, ID, UFO. Acronyms are words formed from initial letters but pronounced as a normal word, or formed with the inital letter of the first word plus the whole of the second, e.g. AIDS, CORE, N-bomb.
【题目解析】：构词法中有一种是首字母法（acronymy), 用这种方法构成的词语又分为首字母组合词(initialisms) 和首字母拼读词 (acronyms)。
