题目：
CATIA的显示精度设为多少最合适？
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B解析：The return on the market would be used only when discounting the cash flows of the market. The risk premium reflects the cost of any incremental risk incurred by the investor above and beyond that of the risk-free security.
