as a result of 结构的特点

题目

as a result of 结构的特点
as a result of the greater resources available to the private medical centers,为什么没有谓语呢?
从句不也应该主谓宾都应该有吗

答案

as a result of 此为短语,短语可以没有谓语.
短语在句中做目的状语.