难溶于稀酸而溶于碱性溶液中药物的重金属检查 A．Ag(DDC)吡啶试液 B．砷斑 C

女性，50岁，查体发现前上纵膈肿瘤手术探查见肿瘤位于前纵膈与心包紧密粘连约3cm，完整切除肿瘤+部分心包切除，术后病理为“胸腺瘤，上皮细胞为主型”下一步的治疗方案是()

A.密切观察随诊，复发时再给与放疗 

B.术后化疗 

C.术后瘤床根治性放疗 

D.术后给与全心包全纵膈放疗+瘤床追加剂量放疗 

E.术后放疗+化疗 

阅读理解。

     When other nine-year-old kids were playing games, she was working at a petrol station. When other

teens were studying or going out, she struggled to find a place to sleep on the street.But she overcame

these terrible setbacks to win a highly competitive scholarship and gain entry to Harvard University. And

her amazing story has inspired a movie,"Homeless to Harvard:The Liz Murray Story" shown in late April.

    Liz Murray, a 22.year-old American girl, has been writing a real-life story'of willpower and

determination.Liz grew up in the shadow of two drug-addicted parents.There was never enough  food

or warm clothes in the house.Liz was the only member of the family who had a job.Her mother had

AIDS and died when Liz was iust l5 years old.The effect of that LOSS became a turning point in her life.

Connecting the environment in which she had grown up with how her mother had died.she decided to do

something about it.

    Liz went back to school.She threw herself into her studies,never telling her teachers that she was

homeless.At night, she lived on the streets.".What drove me to live on had something to do with

understanding,by understanding that there was a whole other way of being. I had only experienced a

small part of the society,''she wrote in her book Breaking Night.

    She admitted that she used envy to drive herself on. She used the benefits that come easily to

others,such as a safe living environment,to encourage herself that"next to nothing could hold me down".

She finished high school in just two years and won a full scholarship to study at Harvard University. But

Liz decided to leave her top university a couple of months earlier this year in order to take care of her

father,who has also developed AIDS."I love''my parents so much. They are drug addicts.But I never

forget that they love me all the time."

      Liz wants moviegoers to come away with the idea that changing your life is''as simple as making a

decision".

1. In which order did the following things happen to Liz?

a.  Her mother died ofAIDS.    

b. She worked at a petrol station.

c. She got admitted into Harvad.  

d. The movie about her life was put on.

e. She had trouble finding a place to sleep.

A. b,a,e,c,d    

B. a,b,c,e,d    

C. e,d,b,a,c    

D. b,e,a,d,c

2.The main idea of the passage is_______.

A. how Liz managed to enter Harvard University

B. what a hard time Liz had in her childhood

C. why Liz loved her parents so much

D. how Liz struggled to change her life

3. What actually made her go towards her goal?

A. Envy and encouragement.    

B. Willpower and determination.

C. Decisions and understanding.  

D. Love and respect for her parents.

4. When she wrote''What drove me to live on...1 had only experienced a small part of the 

    society",she meant that______.

A. she had little experience of social life    

B. she could hardly understand the society

C. she would do something for her own life

D. she needed to travel more around the world

上行文对受文者的行为不具备强制性影响。( )

成人心肺复苏中除颤的能量依次为200J、300J、360J。

高空“蹦极”是勇敢者的游戏。蹦极运动员将弹性长绳（质量忽略不计）的一端系在双脚上，另一端固定在高处的跳台上，运动员无初速地从跳台上落下。若不计空气阻力，则（  ）

A．弹性绳开始伸直时，运动员的速度最大

B．从弹性绳开始伸直到最低点的过程中，运动员的重力势能与弹性绳的弹性势能之和不断增大

C．整个下落过程中，重力对运动员的冲量与弹性绳弹力对运动员的冲量相同

D．整个下落过程中，重力对运动员所做的功等于运动员克服弹性绳弹力所做的功