题目内容
【题目】The growing speed of a plant is influenced by a number of factors, ________ are beyond our control.
A. most of them B. most of which
C. most of what D. most of that
【答案】B
【解析】考查对句子结构及定语从句的理解和应用。根据句子结构——逗号前面为一个完整的句子,后面句子与前面没有连词连接,故只能是从属成分,从而排除选项A;逗号后面为非限制性定语从句,关系代词不能用what或that,因此答案选B。若横线前有and则选A。
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