同一物体在同一温度下的反射率与吸收率的关系是()。A.反射率大于吸收率 B.反射率小

题型:单项选择题

问题:

同一物体在同一温度下的反射率与吸收率的关系是()。

A.反射率大于吸收率

B.反射率小于吸收率

C.反射率等于吸收率

D.不确定

考点:化学工程化工原理化工原理题库
题型:单项选择题

下列加点的字注音有误的一项是:( )

A.扇:他拿着扇(shàn)子却扇(shān)不来风。

B.得:你得(dě必须)把心得(dé)体会写得(de)具体、详细些。

C.屏:他屏(bǐng)气凝神躲再屏(píng)风后面。

D.几:这几(jǐ)张茶几(jī)几(jī)乎都要散架了。

题型:单项选择题

阅读下文,完成文后各题。

骆家辉:从移民到商务部长

不久前,奥巴马宣布,起用骆家辉执掌商务部。在全球经济衰退、贸易保护主义抬头的背景下,起用一贯支持自由贸易的骆家辉,对于目前世界上外贸依存度最高、国际贸易顺差最大的中国来说,是利好消息。

骆家辉,和黑人总统一样,是“美国梦”的鲜活体现。现年59岁的骆家辉是第三代移民,祖籍广东。1975年从波士顿大学取得法学博士学位。1982年当选华盛顿州众议院议员,政绩卓越。1996年,当选华盛顿州州长,是美国历史上第一位华裔州长。出身中下阶层的他深信,是教育使他的“美国梦”得以实现。当选后他大力推动高等教育的普及,增加师资,推行小班教育,在财政预算中增加大学奖学金名额。执政8年,从没传出任何工作或道德丑闻,办公室的灯永远是最晚熄的。

更为人称道的政绩来自经济方面。华盛顿州是波音、微软等跨国公司的总部所在。执掌商贸和科技大州,要以强有力的手腕保持州内经济的活力与规模。在任内,华盛顿州增加了25万个就业岗位,企业利润屡创新高,专为老人儿童提供的医疗服务价格降至全国最低水平,华盛顿州被评为全国管理最完善的5个州之一。克林顿在1997年国情咨文中说:“骆家辉是亚裔移民值得骄傲的儿子,他代表着我们能够实现的未来。”

在他任内,中国成为华盛顿州第三大贸易伙伴,波音、微软等企业均成功在中国进行了业务扩张,华盛顿州和四川省结成“姊妹省”。他指出,美国经济的未来,有赖对华贸易,美国不应把中国崛起看作威胁,而应看作重大机遇。两国应携手合作,创造双赢局面,“而不是把我们自己的过错推到中国身上”。

骆家辉有过短暂婚姻,后双方因性格不合分手。现任妻子李蒙曾当选全美亚裔小姐,知名度不在他之下。他的求爱过程被传为佳话。性格稳重的他几番求爱未果后,租一架小型飞机在李家上空盘旋,机尾拖长长的布条,上书:“李蒙,我爱你!”2003年骆家辉宣布放弃竞选连任,“州长的任期是有限的,而父亲的责任是永远的”。他决定把更多的时间留给家人。

卸任后,骆家辉选择了戴维斯律师事务所,负责中国业务部,仍充当中美关系桥梁的角色。他每年都来中国四五趟。汶川地震后,他深入都江堰灾区慰问。北京奥运火炬传递成都站,他应邀成为火炬手,在素未谋面的普通民众中,“受到了摇滚明星般的欢迎”,令他深受感动。小题1:下列对文意的理解,不正确的一项是(3分)

A.骆家辉和奥巴马都鲜活地体现了“美国梦”——每个人都有成功的机会;成功取决于个人的才能和努力,而不是家世和背景。

B.骆家辉在任内积极推行教育改革,促进社会就业,推动社会福利事业的发展,因政绩卓著受到总统的关注和赞扬。

C.骆家辉性格稳重,但在爱情上不失浪漫;政治上非常成功,对子女也很关心,有着强烈的家庭责任感。

D.骆家辉和四川颇有渊源,他慰问过地震灾区,在成都参加奥运火炬接力仪式时,普通民众都把他当做摇滚明星,给了他热情的支持。小题2:骆家辉在任华盛顿州州长期间取得极大成功的个性因素有哪些?(6分)

小题3:骆家辉被任命为美国商务部部长,对中国来说,是利好消息。他的哪些主张和实践能说明这点?(6分)                             

题型:单项选择题

阅读理解。

Dear editor,

     I am writing to ask what has happened to our young people. They are not as polite or hard-working as

my generation (一代人). I will give you two examples.

     Last Friday, I got on the underground at 9:15 a.m. It was very crowded so there was no free seat. There

were some boys sitting on the seats near me. I didn't know why they were not at school. They were talking

and laughing loudly. It was difficult for me to read my newspaper with all the noise. At the next stop, a

pregnant (怀孕的) woman and her daughter got on with lots of shopping bags. I expected the boys to let them

sit down. They saw the woman but they did nothing. I had to ask them to give the woman and her daughter

seats. They did so but gave me a rude look.

     Last Saturday, I had dinner with my friend's family. I was glad to see his children, who I hadn't seen for

ten years. During the dinner, I started talking about world politics with the children. It soon became clear that

they didn't know much about it. They couldn't tell me the name of the King of Spain or President of Italy. All

they knew about was the Internet or which singers were the most beautiful. In my days, students knew the

kings, the queens and the presidents of every country in Europe.

    I worry about the future of Germany. How could these young people become good workers and parents?

They sit around Mcdonald's after school instead of going to the library as I did at their age. Maybe they have

too much money. Perhaps some readers can give us some ideas about what to do with this "lost generation".

                                                                                                                                  Yours sincerely,

                                                                                                                                   Frantz Vogts

1. Mr Vogts writes this letter to the editor to ______. [ ]

A. show how rude the teenagers are

B. complain (抱怨) about young people's act

C. show teenagers are lazy

D. express his worry about Germany's future

2. When Mr Vogts met the boys on the underground, he ______. [ ]

A. knew he wouldn't get a seat

B. didn't know why they were not at school

C. felt he would be in trouble

D. expected they would get off at the next stop

3. Mr Vogts was disappointed at the dinner because ______. [ ]

A. The children didn't like him

B. the children knew much about the Internet

C. his friend knew little about world politics

D. the children knew little about world politics

4. By saying "lost generation", Mr Vogts refers to ______.[ ]

A. today's workers

B. the people at his age

C. today's young people

D. the young people who are poor

题型:单项选择题

为防止变压器、发电机后备阻抗保护电压断线误动,必须同时装设()装置和装设电流突变量元件或负序电流突变量元件作为启动元件。

题型:单项选择题

打破旧的体制机制束缚,最大限度地解放企业生产力,实现生产要素最佳配置;形成对内激发活力、充满激励,对外富有想象、充满投资吸引力,市场、技术、产业协调发展,人才、经营、管理良性互动的新机制;实现由传统有线电视传输公司向集丰富节目内容和现代传播方式于一体的()的转变,建设一流文化企业,推动跨越式发展。

A、综合视频信息服务运营商

B、综合网络信息服务运营商

C、视频信息服务运营商

D、网络信息服务运营商

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