喷射砼时，喷头与受喷面夹角应为（）。A、80° B、75° C、90°

When my son, Mark, was in the third grade, he saved all his pocket money（零用钱） for over three months to buy holiday presents. The third Saturday in December Mark said he had made his list and had twenty dollars in his pocket.

I drove him to a nearby supermarket. Mark picked up a hand basket and went in while I waited and watched in the car. It took Mark over 45 minutes to choose his presents. Finally he came to the checkout counter (交款处) and reached into his pocket for his money. It was not there! There was a hole in his pocket, but no money. Mark stood there holding his basket, tears falling down his face.

Then a surprising thing happened. A woman came up to Mark and took him in her arms."You would help me a lot if you let me pay for you," said the woman."It would be the most wonderful gift you could give me. I only ask that one day you will pass it on. When you grow up, I would like you to find someone you can help. When you help others, I know you will feel as good about it as I do now." Mark took the money, dried his tears and ran back to the checkout counter as fast as he could. That year we all enjoyed our gifts almost as much as Mark enjoyed giving them to us. I would like to say "thank you" to that very kind woman, and tell her that four years later, Mark went house to housecollecting blankets (毯子) and clothes for the homeless people in the fire. And I want to promise （许诺）her that Mark will never forget to keep passing it on. 

小题1:When did the story probably happen? 

A．On Christmas Day.

B．Before Christmas Day.

C．On New Year's Day.

D．After New Year's Day.小题2:When they got to the supermarket, Mark went in ____________ 

A．with the writer

B．by himself

C．with the woman

D．with his friends小题3:What happened to Mark in the supermarket? 

A．His gifts were stolen.

B．He broke his basket.

C．He lost his money.

D．He lost his way.小题4:Why did the writer want to say "thank you" to the woman? 

A．Because she bought Mark a nice present.

B．Because she always paid money for others.

C．Because she collected clothes for the homeless.

D．Because she taught Mark to help people in need.小题5:What's the best title for this passage? 

A．A big supermarket

B．A kind woman

C．A happy family

D．A wonderful gift

近期，物价成为关注的焦点。据此回答1~5题。

1、食品等生活必需品价格上涨会引起需求量的变动。在其他条件不变的情况下，下列需求曲线最能准确反映这一信息的是[ ]

2、2010年10月20日，我国居民消费价格指数（CPI）同比上涨4.4%、一年期存款基准利率为2.5%，居民存款减少7003亿元，创下了2009年以来的新低，其中，不少居民存款进入股市。这一变化说明[ ]

A、投资理财更注重流动和风险

B、当前存款储蓄出现存款贬值

C、居民投资理财的品种和渠道多样

D、投资股票比投资储蓄风险小、收益大

3、从“算（蒜）你狠”到“逗（豆）你玩”再到“唐（糖）高宗”等，由中国网民创造用以调侃物价上涨的网络新词层出不穷，折射出百姓遭遇物价上涨压力。这表明[ ]

①社会意识是对社会存在的反映

②社会意识能指导人们改造世界

③认识随着客观实际的变化而变化

④意识是物质世界长期发展的产物

A、①③

B、①④

C、②③

D、③④

4、当前，以农产品为主的城乡居民生活必需品价格上涨较多，成为推动价格总水平上升的主要因素。导致农产品价格上升的国内因素可能有[ ]

①农业用地减少

②农村劳动力价格上升

③国际资本对农产品的炒作

④化肥等农业生产资料价格上涨

A、①②③

B、①②④

C、①③④

D、②③④

5、以农产品为主的生活必需品价格上涨，加大了城乡居民特别是中低收入群体的生活负担，引起了政府的高度重视。稳定物价，政府可以[ ]

①大力扶持农业→促进农业生产→保障农产品供应→稳定物价

②加强经济干预→直接从事农业生产→增加农产品供给→稳定物价

③完善宏观调控→健全价格监管法规→打击恶意囤积→稳定物价

④完善社会保障制度→提高低收入者补贴→降低通货膨胀预期→稳定物价

A、①②

B、①③

C、②④

D、③④

下述哪项关于放射性致癌的描述是错误的

A．组织损伤的程度与放射剂量有关

B．RNA是放射损伤的主要物质

C．细胞具有修复放射损伤的能力

D．放射性治疗史与癌发生有关

甘地是被（）派别刺杀的。

A.印度教

B.佛教

C.伊斯兰教

D.基督教

颈椎病针灸治疗