-
水质监测项目中有许多是应用电化学分析方法进行测定的。试写出5个分别应用不同电化学分析方法进行测定的水质监测项目名称以及电化学方法名称。
-
国标中规定的脂肪测定方法包括()
A . 超临界二氧化碳法
B . 索氏提取法
C . 高效液相法
D . 酸水解法
E . 纸层析法
-
除索氏抽提法外,国标方法中规定的脂肪测定方法是()
A . 液液萃取法
B . 高效液相法
C . 酸水解法
D . 纸层析法
E . 超临界二氧化碳法
-
关于口腔和咽部念珠菌病描述错误的有哪些(请从以下5个备选答案中选出2个正确答案)()。
A . 病变黏膜为散在的白色点状物
B . 病变形成的薄膜状物难以拭去
C . 1%碘化钾溶液漱口
D . 显微镜下涂片检查难以确诊
E . 重症者可用制霉菌素
-
水质监测项目中有许多是应用电化学分析方法进行测定。试写出5个分别应用不同电化学分析方法进行测定的水质监测项目名称以及电化学方法名称。
-
血管造影诊断颈动脉体瘤的特征有(请从以下5个备选答案中选出2个正确答案)()。
A . 颈内外动脉分叉处角度扩大
B . 肿瘤内有丰富的细小血管
C . 肿瘤血供主要来自颈内动脉
D . 颈外动脉根部膨大
E . 颈内动脉根部不显影
-
测定稻谷脂肪酸值时,如果双实验误差大于2.0mgKOH/100g时,应再取两个平行样进行测定,如果四个结果中的极差小于2.6mgKOH/100g时,则应取四个结果的平均值为测试的最终结果。
A . 正确
B . 错误
-
国标中规定的脂肪测定方法包括()。
A . A、酸水解法
B . B、纸层析法
C . C、高效液相法
D . D、超临界二氧化碳法
E . E、索氏提取法
-
本课程使用学科可达16个,目前只能采取“重方法轻情境”的方式处理,各位老师除了要分析()个必选案例外,还需要从另外25个案例中至少选择7个进行学习。
A . 5
B . 7
C . 8
D . 10
-
关于沥青混合料中沥青含量的测定方法有如下描述:①射线法适用于粘稠石油沥青拌制的热拌沥青混合料中沥青含量(或油石比)的测定,不适用于其他沥青拌制的混合料。②离心分离法、脂肪抽提器法及回流式抽提仪法适用于从抽提液中回收沥青与溶剂。③燃烧法可用于沥青混合料中沥青含量(或油石比)的测定,但其设备的适用性还存在争议,各单位要慎用。根据实际检测原理,指出上述描述中可能存在的错误共有()
A . A、一处;
B . B、两处;
C . C、三处;
D . D、四处。
-
妇女自检查乳房肿块的正确方法有(请从以下5个备选答案中选出3个正确答案)()。
A . 双手挤捏乳房肿块
B . 观察乳房大小、外形
C . 观察乳头有无溢液
D . 用手指对乳房进行触摸
E . 用手部掌面平按扪查肿块
-
国标中规定的脂肪测定方法包括以下哪二种()。
A . 酸水解法
B . 纸层析法
C . 高效液相法
D . 超临界二氧化碳法
E . 索氏提取法
-
下面有.3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题,从4个选项中选择1个最佳答案。
第一篇
Volunteers are being recruited(征募) to eat raw potatoes in the first human trials of a vaccine grown in genetically engineered vegetables. Researchers in Texas hope that people who eat the potatoes will be protected against common gut(肠,肠子) infections. They believe this technique could prove to be a cost-effective way of growing vaccines in developing countries where such diseases are still killers.
Other researchers previously succeeded in using similar techniques to produce potential vaccines Now Hugh Mason and his colleagues at Texas A & M University(得克萨斯农业及机械大学) their plant vaccines on mice and plan to recruit 15 volunteers for a human trial.
The team first tested the technique in tobacco plants. They took a strain of Escherichia coli(大肠杆菌) bacteria that causes food poisoning, and identified the part of the poison which binds to its victims gut cells. They then used a modified plant bacterium called Agrobacterium tumefasciens to transfer the segment of DNA which manufactures the binding protein into the tobacco plant. Under normal circumstances, these bacteria transfer packets of DNA into plant cells to force the plant to manufacture the nutrients they need. But in the modified bacteria, the DNA package includes the gene to pro- duce the binding protein.
Once the foreign DNA segment was incorporated(结合,合并) into the tobacco's own DNA, the bacteria were killed off with antibiotics. Mason's team then grew these modified tobacco plants and found that they produced the E. coli binding protein.
Proof of success came when the tobacco leaves were mashed up(捣碎) and squirted into the stomachs of mice. Mason says that within days the mice started producing specific antibodies to the E. coli poison, but suffered no ill effects from digesting the binding protein. Mason then produced genetically engineered potatoes and fed these to mice, with similar results.
Mason's team have used plants to produce vaccines against a number of other infectious agents. For example, they have made a vaccine using a protein from the shell of the Norwalk virus, which causes diarrhoea(腹泻) in children.
A third vaccine has also been produced in tobacco using a surface protein from the hepatitis B virus. But Mason says that so far they have only been able to produce small amounts of it in potatoes. Although a vaccine already exists against hepatitis B, a cheaper plant version could make mass immunisation(群众性免疫) possible.
One problem with growing potatoes to produce vaccines is that cooking tends to destroy the protein component of the vaccine, so they must be eaten raw. Mason thinks that bananas may be a better option. "One banana could potentially produce a whole host of different vaccines," says Mason.
The purpose of this text is______。
A. to prove that doctors don't like vegetables
B. to amuse the reader by telling some funny things
C. to describe how vegetables can grow vaccines for their own use
D. to tell the reader about a cheaper way of growing vaccines
-
二、多项选择题(81—100题):每题给出的5个选项中,有2个或2个以上选项是符合题意的,将正确的选项全部选出,并在答题卡上将相应的字母涂黑。不选、多选、少选或错选。该题均不得分。 请开始答题: “人人享有基本医疗卫生服务”是党的十七大提出的全面建设小康社会奋斗目标之~。医疗卫生体制改革关系到千家万户的幸福和人民群众的切身利益,得到了全国人民的拥护。这表明中国共产党()。
A.坚持科学发展观、以人为本
B.坚持立党为公、执政为民
C.把解决人民群众切身利益问题放在首位
D.代表中国最广大人民的根本利益
E.以全心全意为人民服务为根本宗旨
-
:一、数字推理:给你一个数列,但其中缺少一项,要求你仔细观察数列的排列规律,然后从四个选项中选择你认为最合理的一项来填补空缺项。 【例题】1,3,5,7,9,()。 A.7B.8C.11D.未给出 解答:正确答案是11。原数列是一个奇数数列,差额均是2,故应选C。 请开始答题: 12,13,15,18,22,()。
A.25 B.27 C.30 D.34
-
有关消毒剂的描述正确的是(从5个选项中选择4个正确答案)
A.表面活性剂对核酸有亲和力,影响繁殖
B.染料能干扰氧化过程
C.常用消毒剂包括2%~2.5%碘伏
D.常用消毒剂包括2%~4%龙胆紫
E.常用消毒剂包括001%~005%洗必泰
-
第{TSE}题要求从所给的选项中为指定段落每段选择1个小标题; {TS}Paragraph 2_____________
第{TSE}题要求从所给的选项中为指定段落每段选择1个小标题;<img src='https://img2.soutiyun.com/ask/uploadfile/2067001-2070000/f1ee60b80cb0a16790955e004510c923.jpg' />{TS}Paragraph 2_____________
-
二、多项选择题(81一100题):每题给出的5个选项中,有2个或2个以上选项是符合题意的,将正确的选项全部选出,并在答题卡上将相应的字母涂黑。不选、多选、少选或错选,该题均不得分。 请开始答题: 中央经济工作会议于2010年12月10日至12日在北京举行。会议认为,“十一五,,时期取得的成绩来之不易,积累的经验弥足珍贵,创造的精神财富影响深远。通过实践,我们进一步提高了贯彻落实科学发展观能力,()。
A.增强了驾驭经济社会发展大局和解决复杂问题能力
B.增强了公共政策执行力和发展活力
C.加深了对社会主义市场经济规律的认识
D.加深了对我国社会主义制度政治优势的认识
E.推动了社会主义文化道德水平的飞速发展
-
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第2~5段每段1选择个最佳标题;(2)第27~30题要求从所给的6个选项中为每个句子确定1个最佳选项。
Money or Friendship or Both
1 Friends and money don't mix. It's a dangerous combination since a fight over money is one of the fastest ways to end a friendship. But what if a friend asks you to lend him or her some money? If you don't lend your friend the money, you risk losing the friend If you do lend your friend the money, you risk losing both the friendship and your money
2 We have to face facts, so here are some situations you might run across with your buddies (伙伴) - and some helpful tips (忠告) on how to deal with them. Think about why this person needs to borrow in the first place. If he is always living beyond his means, it's his fault, not yours. Any sensible person would not put himself in a position of debt so often. So simply say "no" to this friend. Even if your friend really needs that money for emergency use and you are willing to help him, before you dived into your pocket, follow this reality check: Do you have the extra money? Are you sure you don't need it? Are you willing to write off that amount if it's not returned? If your answers are negative, do yourself a favor and say "no".
3 Let's assume you can't stand saying "no" to your friend because you don't want him living off cat food. What do you do? Write down these details on a sheet of paper before opening up your wallet:
Amount of the loan.
Date of the loan.
Time of repayment.
Amount of interest (if any).
Lender's and borrower's signature.
This will at least keep the borrower from forgetting the loan so easily. If your friend's loan is past due, it's important that you ask him - and it's actually not rude. The longer you wait, the more you brood (忧伤), and the more your resentment builds.
4 You can send him a friendly reminder via e-mail. Tell him something like 'Tm going over my bank account and I'm just wondering when we'll be able to settle that money thing." E-mail saves you from an uncomfortable face-to-face confrontation. There is almost no chance of turning a bad reaction into an argument. Unlike a public conversation, an e-mail message will always be private.
5 After asking two or three times, you might have to wnte it off and the friendship with it. That's what happens. If he just doesn't have the money or is unwilling, then what kind of friend is that?
23 Paragraph 2 .
24 Paragraph 3 .
25 Paragraph 4 .
26 Paragraph 5 .
A Time to break off a friendship
B Unconditional assistance to friends in need
C Things to consider when you have to say "no" to your friend
D Things to think over when you don't want your friend to eat cat food
E Strategies for borrowing money
F Advantages of e-mail in handling money issues
-
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段1选择个最佳标题;(2)第27~30题要求从所给的6个选项中为每个句子确定1个最佳选项。
Understanding Autism
1 Autism (孤独症) is a life-long developmental disability that prevents individuals from properly understanding what they see, hear, and otherwise sense. This results in severe problems of social relationships, communication, and behavior. Individuals with autism have to painstakingly '(费力地) learn normal patterns of speech and communication, and appropriate ways to relate to people, objects, and events, in a similar manner to those who have had a stroke.
2
The cause of autism is still unknown. Some research suggests a physical problem affecting those parts of the brain that process language and information coming in from the senses. There may be some imbalance of certain chemicals in the brain. Genetic (遗传的) factors may sometimes be involved. Autism may indeed result from a combination of several "causes".
3 Most people with mental retardation (智力迟钝的)show relatively even skill development. Individuals with autism, however, typically show uneven skill development, with deficits (~欠缺) in certain areas - most frequently in their ability to communicate and relate to others - and distinct skills in other areas. It is important to distinguish autism from mental retardation or other disorders, since diagnostic (诊断的) confusion may lead to inappropriate and ineffective treatment techniques.
4 In general, individuals with autism perform. best at jobs which are structured and involve a degree of repetition. Some people who have autism are working as artists, piano tuners, painters, farm workers, office workers, computer operators, dishwashers, assembly line workers, or employees of sheltered workshops or other sheltered work settings.
23 Paragraph 1
24 Paragraph 2
25 Paragraph 3
26 Paragraph 4
A What causes autism?
B How common is autism?
C Does autism occur together with other disabilities?
D What is the difference between autism and mental retardation?
E What is autism?
F What kinds of jobs can individuals with autism do?
-
阅读下面这篇短文,短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第2—5段每段选择1个
阅读下面这篇短文,短文后有2项测试任务:(1)第23~26题要求从所给的6个选项
中为第2—5段每段选择1个正确的小标题;(2)第27~30题要求从所给的6个选项中选
择4个正确选项,分别完成每个句子。请将答案涂在答题卡相应的位置上。
Even Intelligent People Can Fail
1 The striking thing about the innovators who succeeded in making our modern world is how
often they failed.Turn oil a light,take a photograph,watch TV,search the web,jet across the
Pacific Ocean.talk on a cellphone(手机).The innovators who left us these things had to find the
way to success through a maze(错综复杂)of wrong turns.
2 We have just celebrated the 125th anniversary of American innovator Thomas Edison’s
success in heating n thin line to white,hot heat for 14 hours in his lab in New Jersey,US.He did
that on October 22.1879.and followed up a month later by keeping a thread of common
cardboard alight(点亮着的)in an airless space for 45 hours.Three years later he went on to light
up half a square mile of downtown Manhattan,even though only one of the six power plants in
his design worked when he turned it on,on September 4,1882.
3 “Many of 1ife’S failures”the supreme innovator said.“are people who did not realize how close they were to success when they gave up”Before that magical moment in October 1879.
Edison had worked out no fewer than 3.000 theories about electric light.But in only two cases did
his experiments work.
4 N0 one likes failure,but the smart innovators learn from it.Mark Gumz.the head of the
camera maker Olympus America Inc.attributes some of the company’S successes in technology
to understanding failure.His popular phrase is:“You only fail when you quit”
5 0ver two centuries,the most common quality of the innovators has been persistence That is
another way of saying they had the emotional ability to keep up what they were doing.Walt
Disney,the founder of Disneyland,was so broke after a succession of financial failures that he
was left shoeless in his office because he could not afford the US$1.50 to get his shoes from the
repair shop.Pioneering Car maker Henry Ford failed with one company and was forced out of
another before he developed the Model T Car.
6 Failure is harder to bear in today’s open,accelerated world.Hardly any innovation works
the first time But an impatient society and the media want instant success When American
music and movie master David Geffen had a difficult time,a critic said nastily that the only
difference between Geffen Records (Geffen’s company)and the Titanic(the ship that went down) was that the Titanic had better music.Actually,it wasn’t.After four years of 10sses.Geffen had so many hits(成功的作品)he could afford a ship as big as the Titanic all to himself.
<img src='https://img2.soutiyun.com/ask/uploadfile/2400001-2403000/cd31ff35bfc473fe95ed3d47d6bea39c.jpg' />
-
进行多种九宫格网格空间的演变组合,利用控制线等基本处理方式:连接、接触、包容、相交、叠加,制作一个较完整、复杂的空间组合模型,形成一个全新的有多种包容 和发展可能用途的空间秩序。 步骤: 1、选择利用控制线进行多种网格空间的演变,寻求空间组合的多种可能性。 2、深化空间组合方式的研究,解决新组合中出现的矛盾问题。 3、通过手绘或SU 模型对比分析不同设计的特点。 要求: 1、从上周阶段作业中的5个模型中选择2个进行模型的深化。 2、以手绘或SU 模型形式提交。
-
58:从所给的四个选项中,选择最合乎逻辑的一种事件顺序()(1)在报上看到招聘广告(2)去指定医院体检(3)签定聘用合同(4)参加员工培训(5)公司工作多人手少()
A.4—3—2—1—5
B.1—4—2—3—5
C.5—1—2—3—4
D.3—4—5—1—2
-
1、1 国标中对于脂肪提取共规定了几种方法?分别是什么?如果要测定肉制品中的游离脂肪和结合脂肪总量,应采取哪种方法? 2索氏提取法中常用提取剂是什么? 3画出索氏提取法的装置图(所有的),并标注样品放置位置。 4描述索氏提取法的主要工作过程