已知椭圆C的中心在原点,焦点在x轴上,以两个焦点和短轴的两个端点为顶点的圆边形是

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问题:

已知椭圆C的中心在原点,焦点在x轴上,以两个焦点和短轴的两个端点为顶点的圆边形是一个面积为8的正方形(记为Q)。

(1)求椭圆C的方程;

(2)设点P是椭圆C的左准线与x轴的交点,过点P的直线l与椭圆C相交于M,N两点,当线段MN的中点落在正方形Q内(包括边界)时,求直线l的斜率的取值范围。

考点:直线的倾斜角与斜率椭圆的标准方程及图象直线与椭圆方程的应用
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佛教出世的最高理想—涅槃。 ( )

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急性肺不张优先选择的治疗方法是()

A.轻度镇静和抗生素

B.胸部X线检查和胸部胶布固定

C.高斜坡卧位合并应用镇静剂和抗生素

D.除去阻塞因素

E.头低脚高位及应用适当的安定药物

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从服务对象最害怕的处境开始,迫使服务对象直接面对最担心的处境,经过不断重复让服务对象对害怕的处境变得习以为常。这种行为治疗技术被称为( )。

A.放松练习

B.系统脱敏

C.满灌疗法

D.厌恶疗法

E.逐级放松

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中国古代哲学家主要探讨“形与神”、“心与物”、“理与气”谁依赖于谁、谁在先的问题。他们是在思考()

A.思维和存在何为本原问题

B.物质与意识的辩证关系问题

C.思维和存在的同一性问题

D.运动与静止的辩证关系问题

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She was French; he was English; they had just moved to London from Paris. When he found out about her affair, she begged for a reconciliation. He was more ruthless: the same afternoon, he filed for divorce in France, one of the stingiest jurisdictions in Europe for the non-earning spouse and where adultery affects the court’s ruling. Had she filed first in England her conduct would have been irrelevant, and she would have had a good chance of a large share of the marital assets, and even maintenance for life.

International divorce is full of such dramas and anomalies, so the natural response of policymakers is to try to make things simpler and more predictable. But the biggest attempt in recent years to do just that, in a European agreement called Rome Ⅲ, has just been shelved. Instead, several EU countries are now pressing ahead with their own harmonisation deal. Many wonder if it will work any better.

At issue is the vexed question of which country’s law applies to the break-up of a mixed marriage. The spouses may live long-term in a third country and be temporarily working in a fourth. The worst way to sort that out is with expensive legal battles in multiple jurisdictions.

The main principle at present is that the first court to be approached hears the case. Introduced in 2001, this practice has worked well in preventing international legal battles, but has made couples much more trigger-happy, because the spouse who hesitates in order to save a troubled marriage may lose a huge amount of money. Rome III aimed to remove the incentive to go to court quickly. Instead, courts in any EU country would automatically apply the local law that had chiefly governed the marriage. This approach is already in force in countries such as the Netherlands. A couple that moved there and sought divorce having spent most of the marriage in France, say, would find a Dutch court dividing assets and handling child custody according to French law.

That works fine among continental European countries where legal systems, based on Roman law, leave little role for precedent or the judge’s discretion. You can look up the rules on a website and apply them. But it is anathema in places such as England, where the system favours a thorough (and often expensive) investigation of the details of each case, and then lets judges decide according to previous cases and English law.

Another snag is that what may suit middle-class expatriates in Brussels (who just happened to be the people drafting Rome Ⅲ) may not suit, for example, a mixed marriage that has mainly been based in a country, perhaps not even an EU member, with" a sharply different divorce law. Swedish politicians don’t like the idea that their courts would be asked to enforce marriage laws based on, say, Islamic sharia.

The threat of vetoes from Sweden and like-minded countries has blocked Rome Ⅲ. But a group of nine countries, led by Spain and France, is going ahead. They are resorting to a provision in EU rules-never before invoked-called " enhanced co-operation" This sets a precedent for a "multi-speed’" Europe in which like-minded countries are allowed to move towards greater integration, rather than seeking a "big-bang" binding treaty that scoops up the willing and unwilling alike. Some countries worry that using enhanced co-operation will create unmanageable layers of complexity, with EU law replaced by multiple adhoc agreements.

The real lesson may be that Rome III was just too ambitious. A more modest but useful goal would be simply to clarify the factors that determine which court hears a divorce, and then let that court apply its own law. David Hodson, a British expert, proposes an international deal that would start by giving greatest weight to any prenuptial agreement, followed by long-term residency, and then take into account other factors such as nationality. That would then make it easier to end marriages amicably, with mediation and out-of-court agreement, rather than a race to start the beastly business of litigation.

What does "trigger-happy" in the fourth paragraph most probably mean7()

A. Couples are more inclined to divorce, being detrimental to the matrimonial stability of Europe

B. Couples are more inclined to quarrel during the divorce, postponing the settlement of the case

C. Couples that fail to divorce would be ashamed into anger, thus pursing extreme ways

D. Couples that want to divorce are more inclined to file their case to the courts in the country where they live

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