必须放入倒凹内的部分是（） A.卡环体 B.支托 C.卡环臂 D.连接体 E.固位网

由于从小被父母忽视而走上犯罪的矫正对象，家庭教育较简单，教育方式比较粗暴，矫正对象反映真不希望回到家里去。面对这样的服务对象，可以设计以( )为主题的小组。

A．建立健康自我观、重塑自信

B．妥善安排，妥善处理冲突

C．交朋友、走自新路

D．改善家庭环境，加强有效互动沟通

E．为社区添砖加瓦为

Every day of our lives we are in danger of instant death from small high-speed missiles from space—the lumps of rocky or metallic debris which continuously bombard the Earth. The chances of anyone actually being hit, however, are very low, although there are recorded instances of "stones from the sky" hurting people, and numerous accounts of damage to buildings and other objects. At night this extraterrestrial material can be seen as "fireballs" or "shooting stars", burning their way through our atmosphere. Most, on reaching our atmosphere, become completely vaporised.

The height above ground at which these objects become sufficiently heated to be visible is estimated to be about 60-100 miles. Meteorites that have fallen on buildings have sometimes ended their long lonely space voyage incongruously under beds, inside flower pots or even, in the case of one that landed on a hotel in North Wales, within a chamber pot. Before the era of space exploration it was confidently predicted that neither men nor space vehicles would survive for long outside the protective blanket of the Earth’s atmosphere. It was, thought that once in space they would be seriously damaged as a result of the incessant downpour of meteorites falling towards our planet at the rate of many millions every day. Even the first satellites showed that the danger from meteorites had been greatly overestimated by the pessimists, but although it has not happened yet, it is certain that one day a spacecraft will be badly damaged by a meteorite.

The greatest single potential danger to life on Earth undoubtedly comes from outside our planet. Collision with another astronomical body of any size or with a "black hole" could completely destroy the Earth almost instantly.

Near misses of bodies larger than or comparable in size to our own planet could be equally disastrous to mankind as they might still result in total or partial disruption. If the velocity of impact were high, collision with even quite small extraterrestrial bodies might cause catastrophic damage to the Earth’s atmosphere, oceans and outer crust and thus produce results inimical to life as we know it. The probability of collision with a large astronomical body from outside our Solar System is extremely low, possibly less than once in the lifetime of an average star. We know, however, that our galaxy contains great interstellar dust clouds and some astronomers have suggested that there might also be immense streams of meteorite matter in space that the Solar system may occasionally encounter. Even if we disregard this possibility, our own Solar system itself contains a great number of small astronomical bodies, such as the minor planets or asteroids and the comets, some with eccentric orbits that occasionally bring them close to the Earth’s path.

Why was it once thought that no spacecraft would survive for very long in space？（）

A．People believed that spacecraft would be destroyed in a black hole.

B．People believed that spacecraft would be misguided by missiles.

C．People believed that spacecraft would be collided with a star.

D．People believed that spacecraft would be damaged by meteorites.

一、根据下列资料回答。
2009年度全国“农民工总量”为22978万人，比上年增加436万人。其中“外出农民工”14533万人，比上年增加492万人。在外出农民工中，“住户中外出农民工”11567万人，比上年增加385万人；“举家外出农民工”2966万人，比上年增加107万人。
从输出地看，2009年东部地区农民工10017万人，同比增长3.1%，东部地区农民工占全国农民工总量的比重为43.6%；中部地区农民工7146万人，同比增长0.9%，中部地区农民工占全国农民工总量的31.1%；西部地区农民工5815万人，同比增长1.2%，西部地区农民工占全国农民工总量的25.3%。
从输入地看，2009年在东部地区务工的外出农民工为9076万人，比上年减少888万人，下降8.9%，占全国外出农民工人数的62.5%，比七年降低8.5个百分点；在中部地区务工的外出农民工为2477万人，比上年增加618万人，增长33.2%，占全国外出农民工人数的17%，比上年提高3.8个百分点；在两部地区务工的外出农民工为2940万人，比上年增加775万人，增长35.8%，占全同外出农民工人数的20.2%，比上年提高4.8个百分点。
从性别看，男性外出农民工占65.1%，女性占34.9%。从年龄看，外出农民工以青壮年为主。其中，16-25岁占41.6%，26-30岁占20%，31-40岁占22.3%，41-50岁占11.9%，50岁以上的农民工占4.2%。从婚姻状况看，已婚的外出农民工占56%，未婚的占41.5%，其他占2.5%。
在外出农民工中，文盲占1.1%，小学文化程度占10.6%，初中文化程度占64.80k，高中文化程度占13.1%，中专及以上文化程度占10.4%。高中及以上文化程度比重比上年提高1.7个百分点，占23.5%。分年龄组看，低年龄组中高学历比例要明显高于高年龄组，30岁以下各年龄组中，接受过高中及以上教育的比例均在26%以上，其中，21-25岁年龄组中接受过高中及以上教育的比例达到31.1%。
2009年，外出农民工月平均收入为1417元，比上年增加77元，增长5.7%。外出农民工月均收入在600元以下的占2.1%；600-800元的占5.2%；800-1200元的占31.5%：1200-1600元的占33.9%；1600-2400元的占19.7%；2400元以上的农民工占7.6%。

从输入地看，2008年在东部地区务工的外出农民工约是在西部地区务工的：

A．3.4倍

B．3.8倍

C．4.2倍

D．4.6倍

从伦理学的角度而言，以下哪一位先秦思想家首先主张“尽性”而诚的诚实观？（）

A.孔子

B.孟子

C.子思

D.荀子

人文主义的根本属性是指人要对自己负责。