If you leave a loaded weapon lying around,

题型:单项选择题

问题:

If you leave a loaded weapon lying around, it is bound to go off sooner or later. Snow-covered northern Europe heard the gunshot loud and clear when Russia cut supplies to Ukraine this week as part of a row about money and power, the two eternal battlegrounds of global energy. From central Europe right across to France on the Atlantic seaboard, gas supplies fell by more than one-third. For years Europeans had been telling themselves that a cold-war enemy which had supplied them without fail could still be depended on now it was an ally ( of sorts). Suddenly, nobody was quite so sure.

Fearing the threat to its reputation as a supplier, Russia rapidly restored the gas and settled its differences with Ukraine. But it was an uncomfortable glimpse of the dangers for a continent that imports roughly half its gas and that Gérard Mestrallet, boss of Suez, a French water and power company, expects to be importing 80% of its gas by 2030--much of it from Russia. It was scarcely more welcome for America, which condemned Russia’s tactics. And no wonder: it consumes one-quarter of the world’s oil, but produces only 3% of the stuff. Over the coming years, the world’s dependence on oil looks likely to concentrate on the Middle East, particularly Saudi Arabia. Russian oil had seemed a useful alternative.

Fear of the energy weapon has a long history. When producers had the upper hand in the oil embargo of 1973-74, Arab members of the Organisation of the Petroleum Exporting Countries (OPEC) cut supply, sowing turmoil and a global recession. When consumers had the upper hand in the early 1990s, the embargo cut the other way. After Saddam Hussein invaded Kuwait in 1990, the world shut in 5m barrels a day (b/d) of production from the two countries in an attempt to force him out. With oil costing $ 60 a barrel, five times more than the nominal price in 1999, and spot prices for natural gas in some European and American markets at or near record levels, power has swung back to the producers for the first time since the early 1980s. Nobody knows how long today’s tight markets will last. "It took us a long time to get there and it will take us a long time to get back," says Robin West, chairman of PFC Energy in Washington. A clutch of alarmist books with titles such as "The Death of Oil" predict that so little oil is left in the ground that producers will always have pricing power. The question is how worried consumers should be. What are the threats to energy security and what should the world do about them The answers suggest a need for planning and a certain amount of grim realism, but not for outright panic.

Based on the remarks made by Robin West, the current situation will()

A.vanish

B.linger

C.aggravate

D.rebound

考点:普通考研中医综合中医综合
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企业在销售活动中,将产品所有权转给用户的物流活动称为()

A.供应物流 

B.销售物流 

C.生产物流 

D.回收物流

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从患病以前的常态向患者角色转化,或者患病后向常态转变,都有一个角色适应的过程,如果适应不良,往往导致心理障碍,可能进一步影响健康和生活。 

患者受病痛折磨感到悲观、失望等不良心境的影响导致行为异常,称之为()

A.角色行为缺如

B.角色行为冲突

C.角色行为减退

D.角色行为强化

E.角色行为异常

题型:单项选择题

畸形的最佳矫治年龄为().

A.5~8岁

B.8~10岁

C.10~12岁

D.12~14岁

E.视患者具体情况而定

题型:单项选择题

对有14个数据元素的有序表R[14]进行折半搜索,搜索到R[3]的关键码等于给定值,此时元素比较顺序依次为

A) R[0],R[1] ,R[2],R[3]
B) R[0],R[13],R[2],R[3]
C) R[6],R[2],R[4],R[3]
D) R[6],R[4],R[2],R[3]

题型:单项选择题

由于照明不足,裁判员应在何时做出改变上下半场时间的决定?()

A.比赛中任意时间

B.在比赛开始前,只有在竞赛规程允许的情况下

C.在第四官员决定时

D.当双方队长同意时

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