CCELD is noted for its unique features except（ ）

CCELD is noted for its unique features except（ ）
A、definition
B、extra column
C、usage examples
D、complicated grammar codes
【正确答案】：D
【题目解析】：《科林斯合作英语词典》以其独特的特性而闻名：如Definition (定义)、Extra column (额外专栏)和Usage example (用法举例)。