金融市场的参与者通过买卖金融资产转移或者接受风险，利用组合投资可以分散投资于单一金融

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Recently some American scientists have given a useful piece of advice to people in industrialized nations．They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago．小题1:  

The scientists say that the human life has changed greatly．Our bodies have not been able to deal with these changes in lifestyle and this had led to new kinds of sicknesses．  小题2:  So they are called "diseases of civilization"．Many cancers and diseases of the blood system are examples of such diseases.

Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none． 小题3:  However, a change in food is one of the main differences between life in ancient times and that of today.

Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones．They ate a lot of fresh wild vegetables and fruits．They did not have milk or any other dairy products, and they made very little use of grains． 小题4:  We eat six times more salt than our ancestors．We eat more sugar．We eat twice as much fat but only one third as much protein and much less vitamin C.

 小题5: But scientists say that we would be much healthier if we eat much the same way the ancient people did, cutting the amount of fatty, salty and sweet food.

A．Stone Age people lived a simple life.

B．But today, we enjoy eating a lot of these.

C．In that case, they would live much healthier.

D．Ancient people also got lots of physical exercise. E．These new sicknesses were not known in ancient times.

F．People today probably don't want to live like our ancestors.

G．Modern people used to suffer from "diseases of civilization".

儿科处方的保存期限为（）
第一类精神药品处方保存期限为（）

A.1年

B.2年

C.3年

D.4年

E.5年

孕30周，骶左前位，胎心音的听诊部位应在()。

A．脐下左侧

B．脐下右侧

C．脐上右侧

D．脐上左侧

E．脐周

COMMIT研究比较氯吡格雷与安慰剂组出血风险的结果，错误的是：（）

A.对灌注、致死、脑出血的综合评估显示，氯吡格雷与安慰剂组比较无显著差异

B.在接受纤维蛋白溶解治疗的患者中，氯吡格雷与安慰剂组比较无显著差异

C.氯吡格雷与安慰剂比较引起致死性出血存在显著差异

D.在70岁以上患者中，氯吡格雷与安慰剂组比较无显著差异

变形观测记录规定符合为正，以下有（）。

A.水平向下游

B.向左岸

C.闭合缝

D.垂直向上