Collins COBUILD English Language Dictionary (1987) has some uniq

Collins COBUILD English Language Dictionary (1987) has some unique features such as definition, extra column and（）.
A、pronunciation
B、grammar codes
C、usage examples
D、language codes
【正确答案】：C
【题目解析】：解析：柯林斯英语词典有三个特点 1. 定义 柯林斯英语词典里面的定义都是整个句子 2. 额外的专栏 这些专栏用来放一些语法信息 3. 用法举例 几乎每个词都有个例子来展现词的意思