The assumptions of the capital asset pricing theory include（）
A. Capital markets are fully efficient
B. Investors are rational
C. Investors have the characteristics of risk aversion
D. Investors are risk appetites
E. Non-systematic risks are unavoidable
F. Systematic risk does not affect the price of the stock
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According to the portfolio theory of securities, as the types of securities in the portfolio increase, then（）
A. Non-systematic risk reduction
B. Reduced systematic and non-systematic risks
C. Increased systematic and non-systematic risks
D. Reduction of systematic risk and increase non-systematic risks
The symbol of the birth of modern capital market theory is（）
A. Markowitz publishes Portfolio Choices
B. Sharp publishes Portfolio Theory and Capital Markets
C. Arbitrage pricing theory
D. Blake and Scholes publish capital asset pricing model: empirical research
The founder of the capital asset pricing model is（）
A. William Sharp
B. Markowitz
C. Eugene Fama
D. Blake and Scholes
A known beta factor of a security or portfolio is equal to 1, indicating that the security or portfolio is（）
A. Same risk as market portfolio
B. Completely risk-free
C. Very low risk
D. Twice the risk of the market portfolio
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