患者，男性，会计，患糖尿病10年。查：身高181cm，体重65kg，该患者的能量供给

建设项目竣工投产或投入使用前，建设单位必须向环境影响评价文件审批部门提交（），说明环境保护设施运行情况、治理效果、达到标准。

A."环境保护设施预验收合格报告"

B."环境保护设施竣工验收报告"

C."环境保护设施验收合格证"

D."环境保护设施预验收合格证"

人民币对公一户通约定转存签约期可以分为（）。签约期满，双方均没有提出终止服务的，服务有效期自动延续，延续次数无限制。

A、三个月

B、六个月

C、九个月

D、十二月

声导抗可测得5种类型的鼓室导抗图，咽鼓管功能障碍属于哪一种类型（）

A.正常型

B.AS型，低峰型

C.AD型，高峰型

D.B型，平坦型

E.C型，鼓室负压型

An analyst does research about expected return and expect standard deviation of return from investment portfolio. Two assets have the same expected return and the same expected standard deviation of returns. The correlation coefficient of returns between the two assets is expected to be +0.6. Which of the following statements best describes the standard deviation of a portfolio composed of those two assets
If the two assets are combined to form a portfolio, the expected standard deviation of that portfolio will be:（）

A. the same as the expected standard deviation of returns for each asset because the correlation coefficient of returns is positive.

B. less than the expected standard deviation of returns for each asset because the correlation coefficient of returns is less than +1.0.

C. unaffected by the portfolio weights used for each of the two assets because the assets have the same expected return and the same expected standard deviation of returns.