用微库仑法测定水中AOX,吹脱挥刀生有机卤化物时,进气口用胶管与气体洗涤瓶入口连接

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问题:

用微库仑法测定水中AOX,吹脱挥刀生有机卤化物时,进气口用胶管与气体洗涤瓶入口连接

考点:环境科学技术及资源科学技术环境监测环境监测题库
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As Oil Declines, So does America


More than 100 years ago, America’s first great economic (26) abroad was spearheaded by its giant oil companies, notably John D. Rockefeller’s Standard Oil Company. These companies (27) powerful beachheads in Mexico and Venezuela, and later in parts of Asia, North Africa and, of course, the Middle East. (28) they became ever more dependent on the extraction of oil in distant lands, American foreign policy began to be (29) around acquiring and protecting US oil concessions in major (30) areas.
With World War Ⅱ and the Cold War, oil and US national (31) became thoroughly intertwined. After all, the United States had prevailed over the Axis (32) in significant part because it possessed vast reserves of domestic petroleum, while Germany and Japan lacked them, depriving their forces of vital (33) supplies in the final years of the war. As it happened, though, the United States was using up its domestic (34) so rapidly that, even before World War Ⅱ was over, Washington (35) its attention to finding new overseas sources of crude oil that could be (36) under American control. As a result, Saudi Arabia, Kuwait and a host of other Middle Eastern producers would become key US oil suppliers (37) American military protection.
There can be (38) question that, for a time, American domination of world oil production would prove a potent source of economic and military power. (39) World War Ⅱ, an abundance of cheap US oil spurred the (40) of vast new industries, including civilian air travel, highway construction, a (41) of suburban housing and commerce, mechanized agriculture, and plastics.

A. focusedB. transferred C. turned D. distracted

Abundant oil also underlay the global expansion of the country’s (42) power, as the Pentagon defended the world while becoming one of the planet’s great oil guzzlers. Its global dominion came to (43) on an ever-expanding array of oil-powered ships, planes, tanks and missiles. As long as the Middle East—and especially Saudi Arabia—served essentially as an American gas station and oil (44) a cheap commodity, all this was relatively painless. That is why the use of military force has been a (45) of American foreign policy since 1987.

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8个月患儿,低热15天,消瘦,近3天呕吐频繁,抽搐10余次。体检:嗜睡,颈项强直,Brudzinski征阳性,双侧Barbinski征阳性,脑脊液微混,白细胞330×106/L,多核<单核,蛋白1g/L,糖1.36mmol/L,氯化物85.5mmol/L。最可能的诊断是

A.急性化脓性脑膜炎

B.病毒性脑膜炎

C.中毒性脑病

D.结核性脑膜炎

E.脑脓肿

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我国冬季南北气温相差很大,最主要的影响因素是(  )

A.纬度因素

B.海陆位置

C.地形因素

D.人为因素

题型:判断题

敦煌莫高窟中的壁画《萨垂那太子》属()故事内容。

题型:判断题

男性,50岁,食管中段癌患者,进行性吞咽困难6个月,完全不能进食2个月。体格检查:消瘦,脱水,左锁骨上有直径2cm坚硬淋巴结,不能活动。治疗应采取()

A.放射治疗

B.争取手术切除

C.化学治疗

D.输血、输液保守治疗

E.食管、胃转流术或胃造瘘术

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