问题 多项选择题

关于反向大豆提油套利操作,下列描述正确的有( )。

A.在大豆期货价格偏低,豆油和豆粕期货价格偏高时使用

B.卖出大豆期货合约,同时买入豆油期货和豆粕期货合约

C.在大豆期货价格偏高,豆油和豆粕期货价格偏低时使用

D.买入大豆期货合约,同时卖出豆油期货和豆粕期货合约

答案

参考答案:B,C

解析: 反向大豆提油套利是大豆加工商在市场价格反常时采用的套利。当大豆价格受某些因素的影响出现大幅上涨时,大豆可能与其产品出现价格倒挂,大豆加工商将会采取反向大豆提油套利的做法:卖出大豆期货合约,买进豆油和豆粕的期货合约,同时缩减生产,减少豆粕和豆油的供给量,三者之间的价格将会趋于正常,大豆加工商在期货市场中的盈利将有助于弥补现货市场中的亏损。

多项选择题
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     A volcanic eruption in Iceland has sent ash across northern Europe. Airlines have stopped or changed

the flights across the Atlantic Ocean, leaving hundreds of passengers stuck in airports.

     Grimsvom is one of the largest and most active volcanoes in Europe. What makes Grimsvom different

is that it lies under a huge glacier(冰川) of ice up to 12 meters thick. The hot volcano heats up the ice

above it, which then forms a layer(层)of water between the glacier and the volcano.This layer of water

puts pressure on the volcano, keeping it stable. As the water flows out from under the glacier, the pressure lifts. The lava(岩浆) from the volcano then comes up to the surface. This is exactly what happened today.

     Now, airlines have to make changes to their flights so as not to fly through the clouds of volcanic ash.

According to KLM,one of Europe's biggest airlines, airplanes cannot go under the cloud or over it. Going

through the cloud can result in ash getting stuck in the airplane's engines, causing damage to the plane.

     The eruption has also caused problems for animals in Iceland. The volcano left ash and sharp glasslike

rocks all over the countryside. Farmers are keeping their animals inside to stop them from eating

ashcovered grass or the sharp object.

  

1.What makes Grimsvom different from other volcanoes?  

A.It is below ice.

B.It lies under the sea.

C.It is the largest volcano.

D.Its lava affects the airlines.  

2.What keeps Grimsvom still?  

A.The slow flow of water.

B.The low water temperature.  

C.The thick glacier.

D.The water pressure.  

3.Which of the following is the result of the volcanic eruption?

A.People stop traveling in Europe.

B.Airlines suffer from the loss of planes.  

C.It becomes dangerous for animals to eat outside.

D.Farmers have lost many of their animals.  

4.This text is most probably taken from________.

A.a research paper  

B.a newspaper report

C.a class presentation  

D.a geography textbook