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击球旋转变化大的拍为：（）

• A、正胶
• B、长胶
• C、正胶海绵
• D、以上答案都不对

正确答案:B

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（）是指拍形角度合拍面方向

• A、直拍
• B、横拍
• C、拍形
• D、以上答案都不对

正确答案:C

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以下说法不正确的有（）

• A、节拍中含有一个强拍的拍子是复拍子
• B、四拍子由两个二拍子结合而成
• C、4/4拍强弱关系是强弱弱弱
• D、单拍子分为二拍子和三拍子

正确答案:A,C

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摘要:智慧树知道答案概率论与数理统计2020期末考试答案问题：网课答案查询问：拍学号：V芯恭zhong號幻影校园，拍都属于混学院：幻影校园合拍子。答：正确问：拍出大长腿的诀窍是（）拍摄,借助地面的延伸增加透视。答：仰角问：拍打法的作用？答：拍打激活了经络，疏通气血，经络通，则能调虚实，去百病。问：拍号的形式以分数形式书写，与分数的概念也是一样的。答：错误问：拍号中，上方的数字表示几分音符为一拍，下方的数字表示每小节有几拍。答：错误问：拍和拍都属于单拍子。答：√问：拍马屁答：flattersomebody问：拍卖的价值分为两类，一类是私人价值的拍卖，一类是公用价值的拍卖。（）答：正确问：拍卖的价值有两类，一类是私人价值的拍卖，另一类是公用价值的拍卖。（）答：正确问：拍卖对象在具有（）的情形下会涨价。答：竞争性问：拍卖行不管文物真假。()答：√问：拍卖行拍卖须事先鉴定真假。()答：错误问：拍全息照片要求平台在曝光的时候，平台的震动不能超过多少？答：1/4波长问：拍摄“哥们电影”，可多选用答：中景问：拍摄奔跑的儿童，对焦模式最好选择（）。答：连续对焦问：拍摄表面光洁度高、具有强烈的光线反射特征的商品时，为减少或避免被摄物表面的投影，可采取如下措施（）。答：关闭室内所有的照明灯打开加有柔光箱的摄影灯适当调整被摄物体与相机的角度问：拍摄不锈钢水杯的光圈参数可设置为（），快门1／125秒，感光度ISO100。答：F／9问：拍摄不锈钢水杯时应将带有柔光箱的影室灯放置在静物台的（）对产品进行打光。答：上方问：拍摄产品时，为了获得更大的景深范围，应该采用（）。答：较小的光

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3/8拍子与6/8拍子都是单拍子。

正确答案:错误

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以下说法不正确的有（）

• A、节拍中含有一个强拍的拍子是复拍子
• B、四拍子由两个二拍子结合而成
• C、4/4拍强弱关系是强弱弱弱
• D、单拍子分为二拍子和三拍子

正确答案:A,C

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以下说法不正确的有（）

• A、节拍中含有一个强拍的拍子是复拍子
• B、四拍子由两个二拍子结合而成
• C、4/4拍强弱关系是强弱弱弱
• D、单拍子分为二拍子和三拍子

正确答案:A,C

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下列各拍子中，属于混合拍子的是（）

• A、3/4拍
• B、2/4拍
• C、6/8拍
• D、7/8拍

正确答案:D

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长胶胶皮拍的特点为：（）

• A、球速快
• B、击球旋转变化大
• C、弹力好
• D、以上答案都不对

正确答案:B

---

• 共用题干 Stage FrightFall down as you come onstage.That's an odd trick.Not recommended.But it saved the pi-anist Vladimir Felts man when he was a teenager back in Moscow.The veteran cellist Mstislav Rostropovich tripped him purposely to cure him of pre-performance panic,Mr. Felts man said, “All my fright was_______(51).I already fell .What else could happen?”Today,music schools are addressing the problem of anxiety in classes that_______(52) with performance techniques and career preparation.There are a variety of strategies that musici- ans can learn to_______(53)stage fright and its symptoms:icy fingers,shaky limbs,racing heart,blank mind.Teachers and psychologists offer wide-ranging advice,from basics like learning pieces inside out,_______(54)mental discipline,such as visualizing a performance and taking steps to re- lax .Don't_______(55)that you're jittery,they urge;some excitement is natural,even necessa- ry for dynamic playing.And play in public often,simply for the experience.Psychotherapist Diane Nichols suggests some_______(56)for the moments before perform-ance,“Take two deep abdominal breaths,open up your shoulders,then smile,”she says.“And not one of these‘please don't kill me'smiles .Then_______(57)three friendly faces in the au- dience,people you would communicate with and make music to,and make eye contact with them.”She doesn't want performers to think of the audience_______(58)a judge.Extreme demands by mentors or parents are often at the_______(59)of stage fright,says Dorothy Delay,a well-known violin teacher. She tells other teachers to demand only what their students are able to achieve.When Lynn Harrell was 20,he became the principal cellist of the Cleveland Orchestra,and he suffered extreme stage fright.“There were times when I got so_______(60)I was sure the audience could see my chest responding to the throbbing. It was just total panic.I came to a _______(61)where I thought,If I have to go through this to play music,I think I'm going to look for another job.” Recovery,he said,involved developing humility—recognizing that_______(62)his talent,he was fallible,and that an imperfect concert was not a disaster.It is not only young artists who suffer,of course .The legendary pianist Vladimir Horowitz's nerves were famous.The great tenor Franco Corelli is another example.“They had to push him on stage,”Soprano Renata Scotto recalled._______(63),success can make things worse.“In the beginning of your career,when you're scared to death,nobody knows who you are,and they don't have any_______(64),”So-prano June Anderson said.“There's_______(65)to lose .Later on,when you're known,peo-pie are coming to see you,and they have certain expectations.You have a lot to lose.”Anderson added,“I never stop being nervous until I've sung my last note.”53._________A: .explainB:.understandC: fightD:.analyze
• 姐妹间进行器官移植引起排斥反应的物质属于（）A、异种抗原B、自身抗原C、同种异型抗原D、异嗜性抗原E、独特型抗原
• 共用题干 Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as“ecosystem engineers”and predators. The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.Firstly,through moving of soil by nest building activity and by collecting food they af-fect the level of nutrients in the soil. This can indirectly impact the local populations of many animal groups,from decomposers to species much higher up the food chain.Secondly,they prey on a wide range of other animals,including larger prey which can be attacked by vast numbers of ant workers.Dirk Sanders,an author of the study from the university's Centre for Ecology and Con-servation,said:“Ants are very effective predators which thrive in huge numbers. They're al-so very territorial and very aggressive,defending their resources and territory against other predators. All of this means they have a strong influence on their surrounding area.”“In this research,we studied for the first time how big this impact is and the subtleties of it. What we found is that despite being predators,their presence can also lead to an increase in density and diversity of other animal groups. They genuinely play a key role in the local environment,having a big influence on the grassland food web,”Sanders said.The study,carried out in Germany,studied the impact of the presence of different combinations and densities of black garden ants and common red ants,both species which can be found across Europe,including in the UK.It found that a low density of ants in an area increased the diversity and density of other animals in the local area,particularly the density of herbivores and decomposers. At higher densities ants had no or the opposite effect,showing that predation is counteracting the positive influence.Dr Frank van Veen,another author on the study,said:“What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels,but as the number of ants increases,their predatory impacts have the bigger effect一thereby counteracting the positive influence via ecosystem engineering.”Ants are important components of ecosystems not only because they constitute a great part of the animal biomass but also because they act as ecosystem engineers. Ant biodiversity is incredibly high and these organisms are highly responsive to human impact,which obviously reduces its richness. However,it is not clear how such disturbance damages the maintenance of ant services to the ecosystem. Ants are important in below ground processes through the alteration of the physical and chemical environment and through their effects on plants,microorganisms,and other soil organisms.What still remains unclear about ants,according to the last paragraph?A: What roles do ants play in the ecosystem in which they live?B: How do ants affect the animal diversity in a given ecosystem?C: How do human activities affect ants'influence on a given ecosystem?D: How do ants alter the physical and chemical environment?
• 目前恶性胸膜间皮瘤唯一可能获得根治的手段是（）A、手术B、放疗C、化疗D、分子靶向治疗E、姑息治疗
• 共用题干 Single-parent Kids Do BestSingle mums are better at raising their kids than two parents-at least in the bird world.Mother zebra finches have to work harder and raise fewer chicks on their own,but they also produce more attractive sons who are more likely to get a mate.The finding shows that family conflict is as important an evolutionary driving force as ecological factors such as hunting and food supply.______(46)In evolutionary terms,the best strategy for any parent in the animal world is to find someone else to care for their offspring,so they can concentrate on breeding again.Soit's normal for parents to try to pass the buck to each other.But Ian Hartley from the University of Lancaster and his team wondered how families solve this conflict,and how the conflict itself affects the offspring.______(47)They compared single females with pairs,by monitoring the amount of food each parent collected,and removing or adding chicks so that each pair of birds was raising four chicks,and each single mum had two-supposedly the same amount of work.But single mums,they found,put in about 25 per cent more effort than females rearing with their mate. ______(48)"The offspring suffer some of the cost of this conflict,"says Hartley.The cost does not show in any obvious decrease in size or weight,but in how attractive they are to the opposite sex.When the chicks were mature,the researchers tested the"fitness"of the male offspring by offering females their choice of partner.______( 49)Sexual conflict has long been thought to affect the quality of care given to offspring,says zoologist Rebecca Kilner at Cambridge University,who works on conflict of parents in birds."But the experimental evidence is not great.The breakthrough here is showing it empirically."More surprising,says Kilner,is Hartley',S statement that conflict may be a strong influence on the evolution of behaviour,clutch size and even appearance."People have not really made that link,"says Hartley.A female's reproductive strategy is usually thought to be affected by hunting and food supply.______(50)______(49)A:To avoid being exploited,mothers with a partner hold back from working too hard if the father is being lazy,and it's the chicks that pay the price.B:To find out,they measured how much effort zebra finch parents put into raising their babies.C:Those males reared by single mums were chosen more often than those from two一parent families.D:With two parents around,there's always a conflict of interests,which can have a detrimental effect on the quality of the offspring.E:Kilner says conflict of parents should now be taken into account as well.F:It turned out that single mums had greater influence on their offspring.
• 治疗变异型心绞痛，疗效最好的是（）A、抗氧化剂B、β受体阻滞剂C、血管紧张素转换酶抑制剂D、钙通道阻滞剂E、血小板抑制剂
• Tracking Down HIV 　　In the summer of 1980, a patient had a strange purplish spot removedfrom below his ear. It was Kaposi’s sarcoma, a rarefm of skin cancer. This patient also had lymph node swelling exhaustion.In November 1980, a Los Angeles immunologist examined a young man who haddiseases linked to immune system malfunctions. The doct had a T-cell counttaken of the patient’s blood. T-cells are a type of white blood cell that playsa key role1 in immune responses. The patient had no helper T-cells. 　　By the end of 1980, 55 Americans were diagnosed with infectionsrelated to immune system breakdown; four had died. A year later the death tollwas 74. Intravenous drug users had T-cell abnmalities. People who hadreceived blood transfusions showed symptoms of immune system breakdown. By July1982, 471 cases of the disease, now called Acquired Immune Deficiency Syndrome(AIDS), had been repted; 184 people had died. 　　In April 1984, American virologist Dr. Robert Gallo isolated thepathogen, disease producer, responsible f2 AIDS. He called it HTLV-III. InParis, Dr. Luc Montagnier identified a virus he called LAV. An internationalpanel of scientists determined that both men had found the same virus. Itbecame known as Human Immunodeficiency virus (HIV). Blood banks began screeningf HTV in 1985, but by then about 29,000 people had been infected throughblood transfusions. Some 12,000 hemophiliacs had contracted HIV throughblood-clotting products. By 1995, 477,900 Americans had AIDS; 295,500 had died. 　　In 1996, researchers announced drugs that reduced HIV in infectedpeople. Today scientists are testing vaccines believe that if HIV can besuppressed, then perhaps it can be eradicated3, but it is still a race againsttime. 　　词汇： 　　spot n. 地点，斑点，斑块，青春痘 　　lymph n. 淋巴结 　　sarcoma n. 肿瘤，肉瘤，恶性毒瘤 　　exhaustion n. 衰竭，耗尽，精疲力竭 　　immunologist n. 免疫学家 　　malfunction n. 故障，失灵，疾病 　　count n. 计数，计算 　　infection n. 传染病，感染 　　breakdown n. 故障，衰弱，崩溃 　　toll n. 代价，死亡人数 　　intravenous drug n. 静脉注射药物 　　abnmalities n. (abnmality的复数形式)畸形，异常情况 　　blood transfusion n. 输血 　　symptom n. 症状 　　virologist n. 病毒学家 　　virus n. 病毒 　　panel n. 座谈小组，仪表板 　　hemophiliac n. 血友病患者 　　vaccine n. 疫苗 　　注释： 　　1.play a key role...扮演一个关键角色，有至关重要的作用 　　2.be responsible f...对……负责，是……的原因 　　3.can be eradicated可以被根除的 　　练习： 4.The basic pattern used to develop this passage is ____. 　　A　chronological der 　　B　personal narrative 　　C　comparison contrast 　　D　question answer
• 患者，女，50岁，既往左耳中耳炎史多年，流脓2年余。CT显示外耳道棘骨消失，鼓室内有软组织密度灶，明显强化，听小骨及鼓室骨壁破坏，最可能的诊断为（）A、血管球瘤B、胆脂瘤C、转移瘤D、中耳癌E、面神经纤维瘤
• 乙脑病毒入侵人体后引起发病的有关因素应除外（）A、机体防御功能B、感染病毒的数量C、病毒的毒力D、蚊叮咬部位E、血脑屏障的健全情况
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