8个月男婴,因腹泻2天伴呕吐入院。大便7~8次/日,蛋花汤样,略带腥臭,伴吐2~3次

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问题:

8个月男婴,因腹泻2天伴呕吐入院。大便7~8次/日,蛋花汤样,略带腥臭,伴吐2~3次/日,1天来口干,尿少。患儿人工喂养,家长卫生习惯差,乳具较少消毒。既往无腹泻史。查体:体温38℃,精神差,哭时泪少,前囟眼窝凹陷,唇干,心肺无特殊,腹软,肠鸣音活跃。大便常规:色黄,有黏液,白细胞数0~5/HP。

本例最可能的诊断是()

A.婴幼儿腹泻(由饮食因素所致),中度脱水

B.肠炎(由致病性大肠埃希菌引起),中度脱水

C.肠炎(由致病性大肠埃希菌引起),重度脱水

D.肠炎(由肠道病毒引起),中度脱水

E.肠炎(由肠道病毒引起),重度脱水

考点:儿内科(医学高级)十一、消化系统疾病十一、消化系统疾病题库
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某发电机输出功率是100kW,输出电压是250V,从发电机到用户间的输电线总电阻R是8Ω,要使输电线上的功率损失为5% ,而用户得到的电压正好为220V,求升压变压器和降压变压器(都认为是理想变压器)的匝数比各是多少?

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第三部分:阅读理解(共20小题,每题2分,满分40分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

Until quite recently, I knew only three things about my father: I knew his name, David S. Johnson, Jr. I knew he was an only child, and I’d been told he was killed on April 12, 1945, somewhere in Germany.

I used to come to visit my Granny. “Daddy David and his two friends were out in the fields, making sure the way was safe for the others to follow,” she told me. “All of a sudden there was an explosion. All three of them were killed.” Granny was looking down, stroking one thin hand with the other. Then there were no words but silence.

I began my search and collection for information about my father as my 50th birthday and the 50th anniversary of his death drew near. I was told that the explosion had blown him to bits and I had great difficulty collecting anything I could find about him bit by bit. Bits of information about his began falling into my hands, my mind and my heart. Longing to know my father kept me connected to him. It was time to transform my longing into knowledge.

Once upon a time he was alive, and my mother and father were deeply in love. They were married, and they had a child, my brother David. Then my father left for the war.

I was born in January 1945. On February 15 my father wrote me a letter of welcome. The letter is kept in my baby book, “Dear Susan, you have a very good family. Your dad is sort of a less able person. Your mother is the most wonderful person I’ve ever known. I’ve always marveled at my great good fortune to have her and been loved by her. If you follow her words and examples, you may expect to meet life in the best possible way, and your path will always be the right one. Your father, Dave.”

Black on white paper, the words are from my father. From them I grow into a person of loyalty and love. How I long for stories that will bring him to life!

1.The writer got to know her father’s story of death from         .

A.her father’s friends  B.someone in Germany

C.her grandmother             D.a little child

2.The author meet difficulty finding information about her father because          .

A.it was too  late for her to start the search    

B.the explosion left little about her father

C.she only found pieces of hands and legs

D.she didn’t have enough knowledge to do it

3.Which of the following statements is TURE?          .

A.Her parents had only one child       B.Her father died before her birth

C.Her father was a disabled man D.The writer never saw her father

4.We know from the last paragraph that the author         .

A.still hates her father for having left

B.is curious about her father’s death

C.shows much respect for her father

D.is sure that her father may survive

题型:单项选择题 共用题干题

锻件法兰对接焊缝射线照相,提高照相质量最重要的措施是()

A.提高管电压增大宽容度

B.使用梯噪比高的胶片

C.使用屏蔽板减少“边蚀”

D.增大焦距提高小裂纹检出率

题型:单项选择题 共用题干题

婴儿与主要抚养者(通常是母亲)之间的最初的社会性联结,也是婴儿情感社会化的重要标志的是()。

A、依恋

B、亲子关系

C、社会化

D、社会性发展

题型:单项选择题 共用题干题

()是社会主义的重要特征。

A.对外开放

B.民主选举

C.对外贸易

D.引进外资

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