A-A+
The computer ______ is a 20th century inventi
问题详情
The computer, ______ is a 20th century invention, has created startling technological changes in the way we organize and produce information.
A．that
B．which
C．what
D．it
参考答案
正确答案：B
解析：本题考查的是非限制性定语从句的用法。只有which能够引导非限制性定语从句，故选项B为正确答案。A项“that”可引导定语从句，但不能引导非限制性定语从句；C项“what”可引导名词从句，但不能引导定语从句；D项“it”不引导从句，故三个选项均排除。
