请问一个句子A history of long and effortless success can be a dreadful handicap,but,if properly…
问题描述：
请问一个句子A history of long and effortless success can be a dreadful handicap,but,if properly…
A history of long and effortless success can be a dreadful handicap,but,if properly handled,it may become a driving force.
其中handled的主语是那个,还有it指代什么?
答
主语是A history of long and effortless success,也就是history
it同样指的是这个.