硫化氢传感器需要定期效验吗？

将收益标准差作为风险量度的方法是( )。

A．VaR方法

B．名义值法

C．波动性方法

D．敏感性方法

In 1943, during the Second World War the body of an English man, William Martin, was discovered off the Spanish coast. The papers he had been carrying were returned to England, where they were carefully examined. They had clearly been changed and that was exactly what the British had hoped would happen, for Martin was a trick designed to fool the Germans.

　 Martin did not exist. The body was that of a sailor who looked as though he had died when his boat sank, but in fact he had been ill and died. Leaving the boat to go down, his parents allowed the dead body to be put into the sea near Spain. It was hoped that the Germans would find it and read the fake(假的)papers he carried.

　　The papers said that the British would attack the island of Sardinia, when in fact they planned to attack the island of Sicily. The trick was successful. When the British landed on Sicily, most of the heavy German guns had been moved to defend(保卫) Sardinia.

小题1:______ put the papers on the dead man.

A．The British

B．German spies

C．Spanish soldiers

D．William Martin小题2:When the Germans found William Martin they probably thought he _________.

A．was a British spy with important information about the war

B．was killed by the British soldiers

C．died of an illness

D．had the fake papers of the British Army小题3:When the British found out the papers were changed they concluded _________.

A．Martin did exist

B．Martin was a German spy

C．the Germans had read the papers

D．they should attack Sardinia小题4:Which of the order is right according to this passage? __________.

a. The Germans found the dead at sea.

b. The British decided to use the dead body to fool the Germans.

c. The British planned to attack Sicily.

d. The papers on Martin were brought to London to be examined.

e. The Germans found the fake papers on the dead body.

f. The Germans decided to defend Sardinia.

g. The Germans believed the papers.

A．c.b.a.e.g.f.d.

B．c.a.b.d.g.f.e.

C．a.c.b.g.f.e.d.

D．b.c.a.g.e.f.d.

（四）某城市公交企业决定新增一条通往新工业区的公交线路，以不断提高公共交通的覆盖率，同时为了方便乘客，加速车辆周转，公交企业提出通过合理布设站点与确定合理的站距，以最大限度地缩短居民出行的时间。已知该条线路长度为30公里，线路配车数为15辆，车辆额定载客量为50人，满载率定额为110％，车辆周转时间为180分钟，乘客在站上下车的时间为l分种。假定乘客平均步行速度为5公里／小时，平均乘距为3公里，车上乘客人数与车下候车人数相同。

确定线路合理的平均站距，应考虑的因素主要有（ ）。

A．满足乘客出行时间消耗最小

B．满足乘客非乘车时间消耗最小

C．提高车辆营运速度

D．结合城市道路实际条件

E．遵循城市有关交通法规

患者68岁，气促，神志恍惚，面色潮红，球结膜充血水肿，心率120/min，律不齐，肝肋下3cm，双下肢水肿，尿蛋白(+)。为判断病情首要检查应选择

A．肝功能

B．心电图

C．血尿素氮

D．动脉血气分析

E．电解质

《不动产权证书》上为什么没有具体的不动产类型？