未知题型 成绩具体要求： 25分 论文选题 要求论文选题先进，立论正确，分析严密，结论合理。 25分 论文内容 要求论文内容概念准确，结构严谨，逻辑性强。 25分 论文表述 要求论文语言表达流畅，实效性强，没有抄袭现象。 25分 论文格式 要求论文格式完全符合规范化要求。

未知题型 一句话中主语和谓语相比较，习惯上谓语是重音。

单项选择题 Suppose there are two risky assets: Security 1 has expected return of 15% and standard deviation of 20%, security 2 has expected return of 10% and standard deviation of 25%, and the correlation of security 1 with security 2 is 0.90. Calculating the expected return and standard deviation of portfolio with security 1 and security 2 when the weight of security 1 is 0.8. A、The expected return is 0.14 and standard deviation is 0.265B、The expected return is 0.14 and standard deviation is 0.206C、The expected return is 0.12 and standard deviation is 0.225D、The expected return is 0.12 and standard deviation is 0.265