题目内容
用第三条件句完成句子。 I took a taxi to the hotle, but the traffic was bad.It _________ (be) quicker if I had walked.
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用第三条件句完成句子。Unfortunately I lost my phone, so I couldn't call you. If I ________ (not lose) my phone, I would have called you.
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某人的期望效用函U=15+3√M ，其中U为效用，M为货币财富。现在他有2万元，想投资于某项目，而这项投资50%的可能全部损失，有50%的可能收益4万元，试问他是否会投资该项目？（请分别按照期望值理论和期望效用理论计算）
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