若点A(m,-2),B(1,n)关于x轴对称,则m=______,n=_____

题型:填空题

问题:

若点A(m,-2),B(1,n)关于x轴对称,则m=______,n=______.

考点:用坐标表示轴对称
题型:填空题

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. reorganized B. readopted C. reaffirmedD. reassessed

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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电影发展期是电影发展的关键时期,这一过程中,电影出现了两条发展道路:一条是意大利的()、法国的()、()等,另一条是以安东尼奥尼、费里尼、伯格曼为代表的第二次现代电影思潮。

题型:填空题

胆道术后T管拔除的注意事项,不包括以下哪一项()。

A.拔除T管前应常规行T管造影

B.造影后即可关闭T管24小时

C.对长期使用激素、低蛋白血症的病人,拔管时间应延长

D.拔管时切忌使用暴力

E.如造影发现结石残留,应于保留T管6周后行胆道镜取石

题型:填空题

颈椎病发生的基本原因是()

A.颈椎间盘退行性变

B.发育性颈椎椎管狭窄

C.急性颈部损伤

D.颈部肌肉痉挛

E.颈椎不稳

题型:填空题

在审核差旅费和招待费时,一位注册内部审计师对某经理某项已付差旅费用的支出用途存有质疑。这位经理答应不将这笔支出看做合法支出,并弥补这笔有问题的支出数额。若这位经理做出的承诺有效,那么内部审计师()。

A.可以忽略非经营支出的原始费用

B.应当立即通知税务局

C.应当将这个审计发现记录在审计报告中

D.应当建议这位经理将有问题差旅支出的部分频繁飞行里程涂改掉

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