Usage notes of the dictionary explain the following aspects EXCEPT （ ）
A、literal meanings of the words
B、difficult points of grammar and style
C、important British and American differences
D、slight differences between words of similar meanings
【正确答案】：A
【题目解析】：Usage notes and language notes (用法注释和语言注释)解释的是相似意义单词之间的细微差异；语法和文体难点；英国英语和美国英语的差异；单词的语用用法。
