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【简答题】
Experts have long thought that depression could be bad for your heart. A new study demonstrates just how dangerous it can be. Brenda Penninx, gerontologist (老年医学家) at Wake Forest University, North California, and her colleagues followed 2847 people over the age of 55 — both with and without heart disease — for four years in order to trace the effects of depression. In the end, they found that people with major depression ( 极度压抑 ) were at least three as likely to die of heart disease as were patients who weren ’ t depressed. Even subjects with mild depression experienced a fatality rate that was 50 per cent higher than normal. Brenda Penninx isn ’ t sure exactly what the connection between heart disease and depression is, but since depression can raise stress, and stress triggers an outpouring of the hormone cortisol ( 肾上腺皮质素 ), and this could cause heart rate and blood pressure to rise. Other factors could also play a part: Depressed people are less likely to do physical exercise or eat right than those who do not suffer from the malady. “ Depression deserves a lot more attention than it usually gets. ” Penninx warns, “ It ’ s a huge cardiac risk factor, so it ’ s really crucial to take care of your emotions. ” (200 ws) 76. Why did Brenda Penninx and her colleagues follow 2847 people over 55 years old? [A] Because they wanted to know their physical conditions. [B] Because the people all had heart disease. [C] Because they wanted to know how depression affect people ’ s hearts. [D] Because 50% of the people died of heart disease. 77. Which of the following statement is true? [A] Depression would cause pressure. [B] Depression would cause blood pressure to go down. [C] Depression had definite connection with heart disease. [D] Mild depression is not at all harmful. 78. What does “ malady ” mean in the passage? [A] Heart disease [B] Depression [C] Blood pressure [D] Stress 79. What did we usually do concerning depression? [A] We didn ’ t pay much attention to it. [B] We paid too much attention to it. [C] We tried to avoid it. [D] We simply ignored it. 80. What is the proper title of the passage? [A] Heart Disease [B] Depression [C] Depression and Fatality Rate [D] Depression Hurts the Heart
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【多选题】下列说法中,符合证券组合管理理论的是( )。
A.
证券或证券组合的收益由它的期望收益率表示
B.
证券或证券组合的风险则由其期望收益率的方差来衡量
C.
证券的期望收益率由于受某些因素的影响而呈现出正相关、负相关或不相关
D.
符合风险厌恶假设和不满足假设的证券组合被称为有效组合
【单选题】假设某证券组合由证券A和证券B组成,它们在组合中的投资比例分别为40%和60%,它们的β系数分别为1.2和0.8,则该证券组合的β系数为______。
A.
0.96
B.
1
C.
1.04
D.
1.12
【判断题】现代大型锅炉是由锅炉本体、锅炉辅机设备和锅炉附件构成的。()
A.
正确
B.
错误
【多选题】权责发生制原则的要求是( )
A.
已经实现的收入无论款项是否收到,都作为本期收入处理
B.
已经发生的费用无论款项是否实际支付,都作为本期费用处理
C.
凡是本期发生的收入,只要没有实际收到款项,都不作为本期收入处理
D.
凡是本期发生的费用,只要没有实际付出款项,都不作为本期费用处理
【多选题】在北半球,全年都可以看到的星座有:( )。
A.
天秤座
B.
大熊座
C.
狮子座
D.
仙后座
【简答题】道路硅酸盐水泥主要测定方法( )
【多选题】权责发生制原则的要求是:
A.
已经实现的收入无论款项是否收到,都作为本期收入处理
B.
凡是在本期收到和付出的款项,都作为本期收入和费用处理
C.
已经发生的费用无论款项是否实际支付,都作为本期费用处理
D.
凡是本期发生的收入,只要没有实际收到款项,都不作为本期收入处理
【简答题】请利用自己下载的月度数据资料,从中找三只股票的月度收盘价,然后查找某国债或者其他可以代表无风险资产的对应时期(2009年1月至2019年8月)的月度收益率数据,然后利用EXCEL表计算分析最小方差组合(只包含三只股票)、最优风险资产组合(所有由三只股票构建组合中的最优组合)和最优投资组合(包含无风险资产和风险资产,风险厌恶系数自己设定,假设可以卖空)。要求结果要明确标出这三种组合中各证券的权重及均...
【多选题】权责发生制原则的要求是()。
A.
已经实现的收入无论款项是否收到,都作为本期收入处理
B.
凡是在本期收到和付出的款项,都作为本期收入和费用处理
C.
已经发生的费用无论款项是否实际支付,都作为本期费用处理
D.
凡是本期发生的收入,只要没有实际收到款项,都不作为本期收入处理
E.
凡是本期发生的费用,只要没有实际付出款项,都不作为本期费用处理
【判断题】1886年在伯尔尼通过的《保护文学与艺术作品公约》是历史上第一部保护著作权的国际公约。
A.
正确
B.
错误
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