NO.PZ2019012201000038
问题如下：
A major difference between formal and heuristic risk measures is that formal measures：
选项：
A.are based on experience or practice.
B.may limit active managers’ ability to fully exploit their insights into expected returns.
C.require manager to estimate or predict risk.
解释：
C is correct.
考点：Additional Risk Measures
解析：与基于经验的限制不同，正式的限制指标需要基金经理去主动计算或预测风险。
基于这里的回复：
https://class.pzacademy.com/qa/63874
我可以这样理解么
heuristic risk measures具有“are based on experience or practice”
formal risk measures不具有“are based on experience or practice”
但是“are based on experience or practice.”不是主要区别对么？
