在窗体上画3个标签、3个文本框（名称分别为Text1、Text2和Text3）和1个

常用的消毒剂有( )

A．高锰酸钾

B．碘酒

C．石炭酸

D．环氧乙烷

E．甲醇

Celebrate. Celebrate. Physicians are delighted with a Food and Drug Administration (FDA) advisory panel’s recommendation earlier this year that Vioxx and its cousins Bextra and Celebrex (all medicines known as Cox-2 inhibitors) should remain on the market, despite evidence they increase heart disease risk in some people. The panelists reached their decision after weighing all the data and concluding the benefits of these pain-relieving drugs outweighed the risks.
Specifically, these scientists acknowledged that, for some patients, these prescription drugs were uniquely effective in reducing pain from arthritis and other causes. For others—concerned about ulcers associated with aspirin and other OTC analgesics—the Cox-2 inhibitors offered the advantage of minimizing potentially serious effects of stomach irritation.
Now is an appropriate time for everyone to take a fresh look at the benefit-risk equation for Vioxx and the other Cox-2 inhibitors.
The risks-increased risk of heart disease in some who use the drugs—have been well publicized. Much less publicity has been given to a spectrum of real and potential benefits that go way beyond reduced risk of stomach irritation. These little-discussed benefits would have been lost, perhaps permanently-had Vioxx, Bextra and Celebrex been driven from shelves in pursuit of perfect safety, an unattainable goal.
For example, there is substantial evidence Cox-2 inhibitors can reduce development of colon polyps, which may become colon canceL Indeed. Celebrex is FDA-approved for those genetically prone to colon cancer. Ironically, the 2004 study that revealed the elevated heart attack risk of Vioxx was primarily designed to further establish the drug’s effectiveness in protecting against colon cancer. And while the results of that interrupted trial have not yet been published, there is good reason to believe they will confirm the protective effects against colon cancer established in research over the last 10 years.
At the time of its withdrawal from the market last fall, studies of Vioxx as well as the other Cox-2 drugs suggest that they had other anti-cancer properties as well, possibly reducing the risk of malignancies of a number of sites, including the lung and esophagus.
Had these drugs been dismissed, their untapped promise for prevention would have evaporated well before it was evaluated and applied to save lives. Fortunately, cooler and wiser heads prevailed.

The word "unattainable" underlined in Paragraph 4 is closest in meaning to ______.

A．unrealizable

B．undoable

C．unachievable

D．impossible

公元前6世纪左右，中国、印度、希腊三个文明中心几乎同时进入思想繁荣时期，哲学思考十分活跃，都开始思考生命、社会之目的及其意义等重大课题。不过他们得出的答案大相径庭，从而使地中海文明、南亚文明和东亚文明就此分道扬镳。中国哲学长期集中在对社会性和政治性的人的考察上，这是一种压倒一切的“人道主义”，它着重的是社会而非个人，这与古印度、地中海文明强调神及彼岸世界的哲学传统形成了鲜明的对照。——美·费正清《中国的传统与社会》

（1）春秋战国时期，中国思想家为什么那么关注“人”，而不像西方那样关注“神”？

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（2）在中国漫长的封建社会里，统治者的许多做法严重束缚了人们的思想，甚至是扼杀人性，试举两例说明。

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（3）在某种程度上说，人类历史是一个“人不断解放”的过程。到18世纪末时，人类为解放自身在生产力、思想观念、政治地位方面做了哪些努力？

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（4）中国近代史上，为了人的思想解放，中国社会各阶层做了哪些努力？

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（5）从历史的角度看，实现人的解放的根本条件是什么？

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增强扫描动脉期，肝实质强化程度（）。

A.无明显强化

B.比脾脏高

C.比腹主动脉高

D.比肾脏高

E.与脾脏强化程度相仿

一环形的细菌质粒pBP1具有一四环素抗性基因(tet^r)，该基因中存在HindIII酶切位点。果蝇的基因组DNA经HindIII消化后用pBP1构建基因文库。菌落原位杂交显示克隆15含有目的基因。利用HindIII和EcoRV对该克隆进行限制性内切酶分析，对照为空的pBP1质粒。下图为电泳图谱，单位为kb。问：

以目的基因为探针进行杂交，预期哪几条为阳性条带
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