新一届中央集体领导把坚持和发展中国特色社会主义作为我国的执政主体体现了（）。 A.新

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      Skeptics are a strange lot.Some of them refuse to admit the serious threat of human activities to the

environment, and they are tired of people who disagree with them.Those people, say skeptics, spread

nothing but bad news about the environment.The "ecoguilt" brought on by the discouraging news about our planet gives rise to the popularity of skeptics as people search for more comforting worldviews.

       Perhaps that explains why a new book by Bjorn Lomborg received so much publicity.That book, The Skeptical Environmentalist, declares that it measures the "real state of the world" as fine.Of course, another explanation is the deep pockets of some big businesses with special interests.Indeed, Mr Lomborg's

views are similar to those of some industryfunded organizations, which start huge activities through the

media to confuse the public about issues like global warming.

      So it was strange to see MrLomborg's book go largely unchallenged in the media though his beliefs

were contrary to most scientific opinions.One national newspaper in Canada ran a number of articles and

reviews full of words of praise, even with the conclusion that "After Lomborg, the environmental movement will begin to die down."

      Such onesided views should have immediately been challenged.But only a different review appeared in Nature, a respected science magazine with specific readership.The review remarked that Mr Lomborg's "preference for unexamined materials is incredible (不可信的)".

     A critical (批判的) eye is valuable, and the media should present information in such a way that could

allow people to make informed decisions.Unfortunately, that is often inaccessible as blocked by the

desire to be shocking or to defend some special interests.People might become halfblind before a world

partially exhibited by the media.That's a shame, because matters concerning the health of the planet are far too important to be treated lightly.

1. According to the passage, which of the following may be regarded as "skeptics" ?

A. People who agree on the popularity of "ecoguilt". 

B. People who disbelieve the serious situation of our planet.

C. People who dislike the harmful effect of human activities.

D. People who spread comforting news to protect our environment.

2. Which of the following can be a reason for the popularity of Lomborg's book?

A. Some big businesses intend to protect their own interests.

B. The book challenges views about the fine state of the world.

C. The author convinces people to seek comforting worldviews.

D. Industryfunded media present confusing information.

3. The author mentioned the review in Nature in order to ________.

A. voice a different opinion

B. find fault with Lomborg's book

C. challenge the authority of the media

D. point out the value of scientific views

4. What is the author's main purpose in writing the passage?

A. To encourage the skeptics to have a critical eye.

B. To warn the public of the danger of halfblindness with reviews.

C. To blame the media's lack of responsibility in presenting information.

D. To show the importance of presenting overall information by the media.

小贝，20岁入伍，家有父母和一个姐姐，均在乡下务农。小贝在一次为部队运输军用物资任务途中，因遇山体滑坡，车子连人全部被压在泥土和石块下。双腿因失血过多和压迫时间太久，后经抢救也无法保留双腿，被鉴定为二级残疾。
一年后，小贝退役，移交政府安置，人住荣誉军人康复医院，由国家集中供养。人院以来，小贝情绪不稳，自我排斥，抵触他人，有强烈的失落感和被部队抛弃感，老家也没有来人看望他。在康复医院住了一年后，小贝想回家与亲人团圆。在工作人员的护送下，小贝回到了久别的村庄，但家人却反对他回家。无奈，工作人员只得将其重新带回康复医院。经历了这样的事情后，小贝遭受了巨大的心理打击。认为自己下半生不得不在医院的轮椅上孤独度过，顿觉万念俱灰，拒绝康复治疗，开始绝食轻生，后虽经工作人员多番做工作，但情绪依旧极度低落。优抚安置社会工作者接手了小贝的个案。
问题:

请写出下列程序段的输出结果，并说明理由。
X=2
Y=3
X, Y
DO SUB1
X, Y
PROCEDURE SUB1
PRIVATE Y
X=4
Y=5
RETURN

支气管异物常发生于（）

A.左上叶

B.左下叶

C.左舌叶

D.右上叶

E.右下叶

焊接硬聚乙烯管道时，自焊枪喷嘴外5～6mm处气流温度以（）℃为最好。

A.250～260

B.260～270

C.280～290

D.290～300