Much of what doctors know about heart disease has resulted from this research project.
问题描述：
Much of what doctors know about heart disease has resulted from this research project.
这句话中谓语是什么,帮忙分析一下这个句式,
答
医生们对于心脏疾病的认识很多都是从这个研究项目中来的.
谓语是result from,这里是现在完成时：has resulted from
Much ...has resulted from...