A word is a symbol that （ ）.

A word is a symbol that （ ）.
A、is used by the same speech community
B、represents something else in the world
C、is both simple and complex in nature
D、shows different ideas in different sounds
【正确答案】：B
【题目解析】：A word is a symbol that stands for something else in the world. 单词是代表世界上其他事物的符号。A选项“单词是用于同一语言社区的符号”，C选项“单词是本质上即简单又复杂的符号”，D选项“单词是用不同的声音表达不同概念的符号”，均不符合题干要求，故答案为B。