假设系统中有四类互斥资源R1、R2、R3 和R4，可用资源数分别为9、6、3 和3。

下列各句中划线的词语使用恰当的一句是         (    )

A．7．23甬温线特别重大铁路交通事故，再次暴露了安全责任落实不到位、安全管理不严格等问题，人们对这场本不该发生的事件痛不欲生。

B．我们学生都应该懂得：发展自己的智力，必须与培养自己的非智力因素结合起来，因为二者是休戚相关，紧密相连的。

C．“这次莅临贵校，原本是检查工作，却让我学到了很多。谢谢你们!”教育局长动情地在台上说。

D．2011年“四川十大最美街道”评选活动尘埃落定，成都春熙路、宜宾莱茵香街、西昌观海路、眉山市眉山新区湖滨路等10条街道获此殊荣。

强心苷中毒时，哪种情况不应给钾盐（）

A.室性期前收缩

B.室性心动过速

C.室上性阵发性心动过速

D.房室传导阻滞

E.二联律

某建筑工程公司在施工中泄露了业主方的一些技术秘密，其行为违反了《合同法》中的()

A.平等原则

B.资源原则

C.公平原则

D.诚实信用原则

谢总事业有成，经营一家拥有五百名员工的科技开发公司。平时忙于做生意，父亲节那天，为一表女儿的孝心，她特设宴为父亲庆贺。 

亲朋好友集聚一堂，喜气洋洋，置身其中年过七十的老父笑得顾不上吃饭。这也是谢总最希望看到的。她走到父亲身边明知故问：“爸爸，你高兴不？” 

“高兴，高兴！”老父拍着手掌。 

“为什么高兴？”谢总还想逗父亲开心。 

“因为你生日啊！”父亲大声说道。 

在场的人都听到了，谢总想纠正父亲的话，但欲语又止，[]。 

自从她的小妹妹出嫁后，家里剩下年老的爸妈，父亲开始不爱说话，不知道什么时候起，他记性变差了，每天到了傍晚时分就打电话给她：“你怎么还不回家？”开头，她不解地反问道：“我没有说过要回家呀！”后来到医院检查得知，父亲得了老年痴呆症。 

父亲什么也记不起来了，只知道天黑的时候催女儿回家，有人请他吃饭，他就觉得那天是女儿的生日。 

看上去，父亲很快乐，因为他把烦心事都忘记了，他甚至把自己也忘记了。但女儿很悲伤，因为即使她呆在父亲身边，父亲仍然会看着门外，问她，她怎么没有回家——这成为他留在脑海里无法实现的最后的记忆，挥之不去。 

一掷万金为父亲庆贺，不如在天黑的时候常回到父亲身边。谢总非常后悔。 

在2005年的父亲节，看到报上一篇《没有父亲的父亲节》的文章，令人想象那些父亲不在身边，或者已经失去父亲的孩子，他们是如何过父亲节的。这样的角度远比在父亲节时请父亲吃饭，或者说声：“父亲，我爱您！”甚至在报上登一则给父亲的贺语，更有意义。 

在“没有父亲的父亲节”里，通过回忆，让父爱洗涤心灵，更能感受到父爱的温暖。与父亲在一起时，我们理所当然地享受着父爱而让父爱迷失了，只有在离开父亲独处的时候，我们才能发现爱与真理，然后更好地回到父亲身边，回到我们的亲人身边，这是爱的好方式。 

回忆是为了思索今天，我们常在失去的时候才会倍感珍惜。但愿，今天的思索能使我们的明天过得更有价值和意义。 

其实，节日本身就是一份礼物。

《没有父亲的父亲节》这篇文章留给本文作者的感受是（）。

A．失去父亲的孩子非常可怜

B．父爱留给人们无尽的温暖

C．过父亲节请客吃饭有意义

D．儿女要学会向父母表达爱

In most parts of the world, climate change is a worrying subject. Not so in California. At a recent gathering of green luminaries--in a film star’s house, naturally, for that is how seriousness is often established in Los Angeles--the dominant note was self-satisfaction at what the state has already achieved. And perhaps nobody is more complacent than Arnold Schwarzenegger. Unlike A1 Gore, a presidential candidate turned prophet of environmental doom, California’s governor sounds cheerful when talking about climate change. As well he might: it has made his political career.

Although California has long been an environmentally-conscious state, until recently greens were concerned above all with smog and redwood trees. "Coast of Dreams", Kevin Starr’s authoritative history of contemporary California, published in 2004, does not mention climate change. In that year, though, the newly-elected Mr. Schwarzenegger made his first tentative call for western states to seek alternatives to fossil fuels. Gradually he noticed that his efforts to tackle climate change met with less resistance, and more acclaim, than just about all his other policies. These days it can seem as though he works on nothing else.

Mr. Schwarzenegger’s transformation from screen warrior to eco-warrior was completed last year when he signed a bill imposing legally-enforceable limits on greenhouse--gas emissions--a first for America. Thanks mostly to its lack of coal and heavy industry, California is a relatively clean state. If it were a country it would be the world’s eighth- biggest economy, but only its 16th-biggest polluter. Its big problem is transport--meaning, mostly, cars and trucks, which account for more than 40% of its greenhouse-gas emissions compared with 32% in America as a whole. The state wants to ratchet down emissions limits on new vehicles, beginning in 2009. Mr. Schwarzenegger has also ordered that, by 2020, vehicle fuel must produce 10% less carbon: in the production as well as the burning, so a simple switch to corn-based ethanol is probably out.

Thanks in part to California’s example, most of the western states have adopted climate action plans. When it comes to setting emission targets, the scene can resemble a posedown at a Mr. Olympia contest. Arizona’s climate-change scholars decided to set a target of cutting the state’s emissions to 2000 levels by 2020. But Janet Napolitano, the governor, was determined not to be out-muscled by California. She has declared that Arizona will try to return to 2000 emission levels by 2012.

California has not just inspired other states; it has created a vanguard that ought to be able to prod the federal government into per national standards than it would otherwise consider. But California is finding it easier to export its policies than to put them into practice at home. In one way, California’s self-confidence is fully justified. It has done more than any other state--let alone the federal government--to fix America’s attention on climate change. It has also made it seem as though the problem can be solved. Which is why failure would be such bad news. At the moment California is a beacon to other states. If it fails, it will become an excuse for inaction.

Corn-based ethanol might not be chosen as an alternative because（）

A. carbon reduction in both fuel production and burning might be hard

B. California also intends to cut down emissions from new vehicles

C. it is almost impossible for vehicle fuel to produce 10% less carbon

D. California’s corns are chiefly transported by cars and trucks