脊柱的生理弯曲中颈椎、胸椎、腰椎、骶椎骨分别凸向 A．前、前、后、后 B．前、后、前

由于房地产市场和房地产经纪活动纷繁复杂，房地产经纪活动所需要的信息不是零星的、孤立的、个别的，而是( )。

A．整体的

B．统一的

C．大量的

D．系统的

E．连续的

“给人温暖就是给自己幸福。”30年来，郭明义就像一支火把燃烧着自己，吸引和汇集越来越多的人加入爱心行动，推进着当代中国社会稳定和谐发展。郭明义所做的每一件事，我们依靠一时的热情也能做到，而他的特殊之处，在于长期坚持，从而成就了“简单中的伟大”。这说明，实现人生价值，需要

①抓住机遇，促成质的飞跃         ②坚定信念，有持之以恒的精神

③从小事做起，重视量的积累       ④尊重规律，学会利用客观条件

A．①②

B．③④

C．①④

D．②③

心肌梗死患者常可见到哪些异常X线表现（）

A.梗死区搏动异常

B.心脏增大以左室为主

C.心脏普遍增大

D.心包和胸膜积液

E.左心衰竭

Not long ago , Richard Denniston found himself suffering the same pain that millions of other pet owners have faced . His little Scottish dog had a brain tumor（肿块）and would soon die. Like others who faced the problem before him , Denniston just wanted to end his pet’s suffering . However , he took one step further.

Deniston , an expert who studies animals , collected a tiny skin sample from the dog and took it to his laboratory at Louisiana State University. There he  cultivated  it and froze it in liquid nitrogen.

From that idea , Denniston started a new technology .Denniston’s company will save pet’s DNA ＄500，plus a monthly storage fee of Us ＄10, until cloning becomes a reality .

Thanks mostly to the contribution of a California multimillionaire , that day may not be so far off.

“It could happen extremely soon if everything went on well.”says Mark Westhusin , a professor leading a dog cloning team . Most experts put successful dog cloning a year to five years down the road . The cost is bound to be expensive at first , but it would eventually drop to a few thousand dollars.

Since Dolly , the sheep which was first cloned in 1997 ,cattle ,goats ,mice and monkeys have been cloned in labs . Pets are likely to be next.

“I really believe that the technology is going to become available for many species in the near future ,”Denniston says .

1. After his pet died ,Richard Denniston_______.

A. did something more than the ordinary pet owners

B. did as other pet owners

C. did nothing but feel very sad

D.could not help feeling lonely without his dear pet

2. Richard Denniston_________in liquid nitrogen for an experiment.

A. was a doctor who put his dog

B. was an animal expert who put a piece of his dog’s skin

C.was an expert at collecting skin samples who then put them

D.took great interest in freezing things

3. The underlined word “cultivated ”in Para . 2 probably means_________.

A. bought     B.discovered    C.caught     D.trained

4. Cloning will cost people_______.

A. a lot of money in five years .

B. much in the beginning and then be reduced to a thousand dollars.

C. much and then will surely be reduced to thousands of dollars.

D.much at first and then might be reduced to a few thousand dollars.

男性，62岁。突发胸痛2小时来诊，既往糖尿病史5年，脑血栓2个月。BP100/70mmHg，心电图示如图15。

下列采取的治疗措施不恰当的包括（）。

A.吸氧

B.阿司匹林300mg嚼服

C.胺碘酮静脉注射

D.静脉应用溶栓药物

E.补液扩容

F.应用β受体阻滞剂