任意三角形最少都有两个锐角。[ ]

2012年圣诞来临，美国的财政悬崖问题依然难解。眼见2013年1月1日的财政悬崖触发日步步逼近，有美国媒体支招把阿拉斯加卖给中国来度过困境，引发热议。读图和材料，完成下列问题：

材料一：阿拉斯加地形图

材料二： 阿拉斯加降水量空间分布图

材料三：阿拉斯加是美国面积最大的州，随着全球气候变暖，宜居面积不断增加；阿拉斯加石油、天然气、铅、锌等矿产资源储量丰富，2011年，阿拉斯加矿产品出口总值18.4亿美元，其中对中国出口4.8亿美元，另外渔业、木材等农业资源也丰富；阿拉斯加是爱斯基摩人的定居地，有独特的自然和文化景观。

（1）读材料一和材料二，描述材料二中方框内等降水量线的分布特征，并简析原因。（12分）

（2）安克雷奇是美国阿拉斯加州最著名的港口之一，据图解释该港口的自然区位优势。（9分）

（3）依据材料三，结合中国目前的资源、人口和发展现状，试分析为什么美国把中国列为阿拉斯加的最大潜在买家？（9分）

“节能篇”在对节能措施进行综述的同时，应分析（）。

A.建设项目的建筑、设备、工艺的能耗水平

B.建设项目生产的用能产品的效率或能耗速度

C.建设项目生产的耗能产品的效率或能耗指标

D.建设项目的建筑、设备、工艺的能耗指标

London, Reuters---What could annoy teenagers enough to make them stop hanging out with friends and go home？

No, it’s not a visit from their mothers, and not a threat to take away their cellphones or pocket money.

It’s high-frequency noise. The UK police recently agreed to use a device (装置) called the Sonic Teenager Deterrent. It sends out a sound that makes teenagers become so impatient and angry that they have to cover their ears tightly and walk away.

The sound is at extreme high-pitch that can be heard by those under 20. The body’s natural ability to detect some wave bands (波段) decreases almost entirely after 20, so few adults can hear the sounds. The black-box device, nicknamed the Mosquito because of its sound, can be fixed to the outside walls of shops, offices and homes. It sounds to youngsters like a crazy insect or a badly played violin. But it causes no physical damage.

A number of police forces and councils have given permission to use the system and want to install it at trouble spots.

Staffordshire Police Inspector Amanda Davies, who has given the device to shopkeepers in the Moorlands area, said," It is controlled by the shopkeepers--if they can see through their window that there is a problem, they turn the device on for a while until the group has run away."

小题1:The device can be used to ____________.

A．threaten teenagers in public

B．drive away trouble-makers under 20

C．help mothers control their teenage children

D．help the police control shopkeepers小题2: From the passage we can know that ___________.

A．young people often suffer from pains in ears

B．shopkeepers are troubled by noisy insects

C．high-frequency noise is beyond the listening ability of people over 20

D．the police invented a new device to deal with teenagers小题3: The purpose of the writer to write the passage is ________.

A．to advertise a new hi-tech device

B．to tell the reader a piece of news

C．to sell the device to shopkeepers

D．to inform the public as the spokesman of the police小题4:Who will welcome the device most?

A．Shopkeepers.

B．The police.

C．Young people.

D．The producer.

冷处所指环境条件（）

A.不超过20℃

B.避光且不超过20℃

C.2℃~10℃

D.10℃~30℃

E.2℃~8℃

下列加油加气站应设消防给水系统的是（）。

A.加油站

B.液化石油气加气站

C.压缩天然气加气站

D.加油和压缩天然气加气合建站