Which of the following is not a commonly used research method for uncertain systems（）
A. Probability statistics
B. Fuzzy mathematics
C. Grey system
D. Operations Research
Grey system theory is the scientific method to solve（）
A. Complex problems of certainty
B. Semi-deterministic complex problem
C. Uncertain complex problem
D. Uncertain semi-complex problems
The research object of gray system theory is（）
A. Clear extension, clear connotation
B. Unclear extension, clear connotation
Clear extension, unclear connotation
D. Unclear extension, unclear connotation
本讲提到价值投资有哪些主要目标（）
A. 寻找被低估资产（Under-priced Assets）
B. 坚持长期投资（Long-term Goals）
C. 关注股票波动性（Stock Volatility）
D. 做好风险控制（Risk Management）
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