患者女,57岁,2h前行中心静脉导管置入术。先经右颈内静脉穿刺失败后改行左侧颈内静脉

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问题:

患者女,57岁,2h前行中心静脉导管置入术。先经右颈内静脉穿刺失败后改行左侧颈内静脉穿刺成功。

此时紧急采取的处理措施是()

A.停止静脉输液

B.立即输血,同时给予升压药

C.迅速行心包穿刺引流

D.立即给予强心药物

E.立即加快静脉输液

考点:麻醉学(医学高级)麻醉技术与监测麻醉技术与监测题库
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(10分)在做“铁在氧气里燃烧”实验时,小芳等同学进行了以下探究活动,请你一同参与。

【探究一】探究铁丝燃烧是否需要纯氧

【实验内容】取0.38mm的铁丝,分别在体积分数为90%、70%、65%、60%、55%的氧气中进行实验。

实验现象

O290%70%65%60%55%
实验现象燃烧剧烈、燃烧时间长,效果好燃烧比90%弱,燃烧时间短,实验成功燃烧比70%弱,燃烧时间比70%短,实验成功燃烧比65%弱,燃烧时间更短,实验成功难以燃烧,只是发红
【结论】就0.38mm铁丝而言,燃烧所需氧气的最低体积分数为       ,且氧气浓度越大,燃烧现象越            。(填“剧烈”或“不剧烈”);

【拓展】上述关于铁丝燃烧所需氧气最低浓度的结论是否合理,请说出理由?

               (填 “合理”或 “不合理”),理由:                             

【探究二】探究铁丝燃烧产生火星四射的原因

【实验内容】:取纯铁丝和铁丝含碳量分别为0.1%、0.32%、0.52%、0.69%的铁丝 (直径均为0.20mm),分别在氧气中进行实验。

C %纯铁丝0.1%0.32%0.52%0.69%
实验现象无火星四射现象,熔断有短暂火星四射现象,实验欠成功火星四射现象明显,实验成功燃烧比0.32%剧烈,火星四射更明显,实验成功燃烧比0.52%更剧烈,火星四射,实验成功
【结论】:铁丝燃烧产生火星四射现象和      (填元素符号)有关,就0.20mm铁丝而言,燃烧剧烈程度和其含量的关系为                                       

【探究三】:探究铁丝的纯度

探究小组取2.10g铁丝在足量的氧气中充分燃烧,产物经过除杂处理后,得到四氧化三铁的质量为2.32g,试通过计算求出铁丝中铁的质量分数。(要求写出计算过程)(4分)

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空压机正常停机停机步骤是什么?

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III. 阅读(共两节,满分40分)

第一节阅读理解(共15小题;每小题2分,满分30分)

阅读下列短文,从媒体所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

In Stockholm, the Swedish Academy has chosen the British author Doris Lessing for the 2007 Nobel Prize in Literature.

The selection of Doris Lessing for a Nobel was popular among the hundreds of journalists gathered for the announcement in Stockholm.

Permanent Secretary of the Swedish Academy Horace Engdahl said with skepticism, fire and visionary power Lessing has subjected a divided civilization to scrutiny.

Doris Lessing was born in 1919 in Persia - modern-day Iran - to British parents, moving as a child with her family to southern Rhodesia, now Zimbabwe, where she stayed in school only to the age of 14.

A year after moving to London, she published her first novel in 1950. The Grass is Singing examines unbridgeable racial conflict in colonial Africa through the eyes of a white farmer's wife and her black servant.

A member of the British Communist Party during the 1950s and a campaigner against nuclear arms and South African apartheid, Lessing was for years banned from that country and from Rhodesia.

Her literary breakthrough came in 1962 with publication of The Golden Notebook, seen by many, though not necessarily Lessing, as a pioneering work of modern feminism. A disjointed study of the mind of the main character, Anna Wulf, the novel explores her thoughts about Africa, politics and communism, relationships with men and sex, and Jungian analysis and dream interpretation.

Lessing's themes shifted to psychology in her works from the 1960s, and by the 1970s she was fascinated with the Islamic mystic tradition of Sufism. Her turn toward science fiction with the Canopus series in the early 1980s was not warmly received by traditionalist critics, but she has continued to win new readers and numerous literary awards, including the David Cohen British Literary Prize and the Companion of Honour from the Royal Society of Literature, both in 2001.

Following the announcement, the Horace Engdahl told VOA why he was personally so pleased with Lessing's selection.

"She is one of the truly great writers - of novels, short stories, fiction and non-fiction," Engdahl said. "She is one of the few writers who have had the courage to uphold the principle of equality between the male and female experience, and she has given the impulse to numbers of other women writers. And she is really the mother of a school that is one of the most important in our contemporary literature."

At 87, Doris lessing is the oldest Nobel Literature laureate since the first prizes were awarded in 1901. Each Nobel Prize is this year accompanied by a check for approximately $1.4 million.

41. How old was Doris Lessing when she published her first novel?

A. 14            B. 26           C. 31                D. 50

42. Which of the following about The Grass is Singing is true?

A. It is mainly about racial conflict between the whites and the blacks in the US.

B. The main characters are a white farmer’s wife and her black servant.

C. It was published in Africa.

D. It was Doris Lessing’s most famous novel.

43. We can infer from the passage that __________.

A. Journalists are very interested in the election of Doris Lessing’s for Nobel Prize.

B. Doris Lessing regard The Golden Notes as a pioneering work of feminism.

C. Doris Lessing has written about many different subjects.

D. Many writers have the courage to stick to the equality between the male and female experience.

44. The underlined word school in the last paragraph but one means________.

A. institution for educating children

B. college or university

C. department of a university 

D. group of writers, thinkers

45. Which of the following can be the best title of this passage?

A. Doris Lessing wins Nobel Prize for literature

B. The greatest British female writer

C. The oldest Nobel Prize winner

D. 2007 Nobel Prize announced in Stockholm

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收寄局收寄的快递包裹单件超过()千克可直封寄达局所在邮区中心局。

A.5

B.10

C.15

D.20

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甲旅行社主要经营中国公民前往中国港澳台地区的旅游业务,则甲旅行社须缴存的质量保证金和注册资本分别为()。

A.30万,不少于100万

B.20万,不少于100万

C.140万,不少于30万

D.20万,不少于30万

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