Studies show that young people with higher-than-average blood pressure and their families have a history of high blood pressure are more likely than others to develop a severe form of the condition.
A. and their families have a history of high blood pressure
B. whose families have a history of high blood pressure
C. and a history of high blood pressure runs in the family
D. whose families have a history of high blood pressure running in them
E. with a history of high blood pressure running in their family
whose不是直接跟在前面的先行词后面做宽展意义吗？
这里为什么就可以这么用？？？
D选项running in them的them的指代是有问题的
简单说them这种人称代词，一般来说要指代句子的主语的（这是一个语言的倾向性的问题）所以这里的them实际上是可以指代young people 这就存在一个歧异了 也是D不够好的地方，读起来不那么清楚
E选项的with结构完全可能直接修饰前面的BP所以也是有歧异的 也是E不够好的地方
