想請問18題為什麼不能選C而是選A

. 18~22 bhow boold 核心素養:系統思考 ·228 words Adele: Did anyone see Turn Around ? Many of my friends think it a must-see movie this year. Murphy: It talks about the teaching life in the remote school. Carla: I cried a lot while 18. the movie in the theater. Mr. Wang is truly a caring person. After the internship in the remote school in Nantou, 19. because he dreamed of teaching in a big school. Just at that time, he met with a great earthquake, and it made many people homeless. Many school children were afraid of not seeing him again, so they kept 20.,“Are you going to come back?” Because he worried so much when he knew some of the students might miss out on schooling, he decided to stay with them. Murphy: It also talked about the problem that schools in far-away places are always short of teachers. Adele: 21 The city life must be a big draw for him. Murphy: You won't believe this! He is still teaching the children there. He uses a new classroom model of teaching. The new model is a win-win way for both the teachers and students. By learning on their own and fixing problems together with their classmates, the students there love reading to better 22 Adele: No wonder one of my friends wants to be a teacher like him after watching the movie. remote 偏遠的 internship 實習 model 教學模式 better 使…更好 (C) I saw (D) see 18. (A) seeing (B) to see hic mind to write a book (B) he planned to leave the school

求解答案是否正確

Multiple-choice questions: (70 points) write the letter of statement that is not true: 1. A.B.U The Drude Model: (a) It is a classical approach using concepts from the kinetic theory of gases. (b) A relaxation-time approximation is used where the probability of collision is l/t. (c) No forces act on the electrons in between collisions. (d) It predicts accurately the electronic heat capacity of metals. 2. The Sommerfeld Model: (a) The crystal potential is replaced by an average Coulomb potential. (b) The separation of states is so close that a continuum model can be applied. (c) The electrons are highly localized due to a strong crystal potential. (Q) The energy of the highest occupied state at 0 K is the Fermi energy. 3. Density of states in k-space, N(k): (a) N(k) is determined by the boundary value conditions. (b) For lattices in any dimensions, N(k) is constant in k-space. (C) N(k) depends on the direction and magnitude of k. (d) It is directly proportional to the volume of the crystal. E影響, c 4. The Fermi surface of a metal: (a) is responsible for many of the transport properties of the metal, (b) depends on the nature of the chemical bonds, (c) is always a sphere, (d) can involve mixing of electron orbitals. ✓ 5. The conductivity of a material () increases with the mobility of its carriers, (b) increases with the density of carriers, (C) it is inversely proportional to the energy gap. cogu changes with temperature. 6. BID Plasmons: (a) They are an important characteristic of the Sommerfeld electron gas model. (b) Plasmons occur spontaneously in metals. (c) They are related to charge density oscillations. (d) The Plasmon energy is typically of the order of 10 eV. The Fermi energy Ef in intrinsic semiconductors 8) is usually close to y E, at OK (b) it ACiD. can increase or decrease with temperature depending on the ratio of hole and electron effective masses, (c) it represents the point at which the probability of occupation is 12, even though there may not been any states with that energy, (d) its value relative to the electronic bands must remain unaffected in the presence of defects or interfaces.

請問一下這題怎麼算😭好難

Vout - 5 volt D2 +5 vol o Vout D OVORI = Vout == 4.310 v ok suming the diodes are | (b) tions shown in Figure P9.23 D -9.3 大 li (c) WO Do V 12 +7 V o bin 88. I won T08 . 9.24 Sketch the output waveform and the voltage transfer characteristic for the circuit of Figure P9.24. Assume an ideal diode, us (t) = & sin (it), V, = XV, Ri = 812, and R2 = $ 12. 10 4 lo lo mm ogiloc www bools boRi t V. -Vo 15 k12 15 k92 1 vs borbo R2 V 4V V c) (d) bagnozib Figure P9.24 OU 29,22, find the range of Vin 25 Repeat Problem 9.24, using the offset diode model

求解第17題

V9 16. - 20題為題組 wow vloviloy To A biogas plant/fueled largely by chicken manure was started at a farm south of Berlin. dira orainore art DDL DOWOL About US$14.5 million was invested in the project WILL 16. is expected to meet the energy requirements of 4,600 households when it becomes fully operational. Located 100km south of the German capital, the innovative plant has been designed to produce heat and fertilizer as well as electricity. 17. 70 percent of the energy comes from chicken manure and the J1929b rest from corn and grass. Biogas refers to a mixture of gas that is produced when organic material is broken down, usually in the absence of oxygen. It's able to provide a renewable energy source and can be used 18. electricity or heated water. Replacing fossil fuel with biogas can greatly help the environment. “The project is 19. to serve as a model for the egg and chicken industry," said Environment Minister Sigmar Gabriel, whose department put up almost 10 percent of the cost. The farm contains two plants, each 20. 35,000 chickens that produce 25,000 tons of manure a year. The energy produced from the biogas plant will be able to provide electricity for the farm buildings as well as local administration offices. 10 16. (A), that B 0 ( (D what CB 17.(A) Whetheriores (B) Having s/(C) Someos (D) Regarding to (D) by producing (B), which worn where

想問一下紫色螢光筆中 has been that的用法是什麼?

In March, scientists reported that a new distinct" layer in the Earth had been detected. Until recently, the standard teaching has been that the Earth is comprised of? four layers: 教書 the crust, mantle4, o'uter Core5, and inner core. The fifth layer is within the inner core, and is being referred to by geologists' as an inner-inner core. In order to study the inner core, scientists have used earthquake waves to create images of this region. Over the past few decades, this imaging has shown some anomalies that scientists cannot account forº. Some of the data seems to suggest that the core is not entirely solid iron as once thought. Now mineral physicists and geodynamicists 10 are working to create models that may help clarify the makeup12 of this newly discovered layer of the Earth. ||| 字詞大補帖 科學家在今年三月公布,他們發現地球有新的明 顯地層。直到最近,標準的教科書都會寫說地球的結 構有四層:即地殼、地函、外地核與內地核。這個第 五層位在內地核裡,地質學家稱之為內內地核。為了 1. distinct [distinkt] a. 明顯不同的 2. be comprised of... 由……組成 comprise [kam praz ] w. 包括,由…… 構成 死亡,於完动自重、由编制: 口国

第25題答案是A 請問為什麼🙏謝謝！

(B) While crop circles were first discovered in the twentieth century, Stonehenge is a mystery 21 origin comes from ancient times. Stonehenge 22 two rings: one is inside the other. Some of the stones came from the local area; the others clearly did not. Scientists have long wondered how such huge stones were moved to the site where they are now. 23 enough, several crop circles were discovered in the surrounding areas. Is it a coincidence? Many have found 24 difficult to believe so. Because of 25 unexplainable mysteries as crop circles and Stonehenge, many people claim that there are intelligent life forms on other planets. ) 21. (A) which 22. (A) is consisted of 23. (A) Accidental 24. (A) them 25. (A) such (B) whose (B) consists of I (B) Amazing (B) themselves (B) so (C) that (C) made up of (C) Obviously (C) it (C) as (D) among which (D) is included (D) Interestingly (D) that (D) many (C) Alison was a beautiful, popular, and intelligent eleventh-grader. Unfortunately, one day her mother found a bald patch on Alison's scalp. They concluded that Alison 26 have pulled her hair back too tight in a ponytail. Yet, three months later, the once model-like girl was 27 alopecia, and nothing could be done about the disease. Eventually, 28 she went, Alison had to wear a baseball cap to cover all of the bald patches. With her family's encouragement, Alison decided to stop concealing her hairless head. She eventually 29 -2.

（社區） 求解🙏第71題：陰性預測值要怎麼算 謝謝！！

0267. 骨質密度篩檢之敏感度(sensitivity)為80%,其代表的意義為何?(A)篩檢結果為陰性個案中,有80%有骨質疏鬆 (B)有 80%的骨質疏鬆個案,篩檢結果為陰性(C)篩檢結果為陽性個案中,有80%有骨質疏鬆(D)有80%的骨質疏鬆個案,篩檢結 果為陽性。 情況:159 位喉嚨痛的病人中,有42位喉部培養呈陽性,在呈陽性反應者中經醫師正確診斷出B疾病者有30人;同時有117 人 喉部培養呈陰性,醫師對其中88 人正確地未給予抗生素(如表)。依此回答以下四題。 DID 升 68. 此喉部培養檢查的敏感性(sensitivity)是:(A) 50.84% (B) 71.42% (C) 75.21% (D)88%。 +3o 142 69.此喉部培養檢查的特異性(specificity)是:(A) 50.84% (B) 71.42% (C) 75.21% (D) 88%。 | 88 | 收 历 70. 此喉部培養檢查的陽性預測值(positive predictive value)是:(A) 50.84% (B) 71.42% (C) 75.21% (D) 88% 71, 此喉部培養檢查的陰性預測值(negative predictive value)是:(A) 50.84% (B) 71.42% (C) 75.21% (D) 88%。 72. 某地區年中人口數為10萬人,該地區肝癌病患為1,000人,全年內死亡總人數為500人,其中因肝癌死亡為30 人,該地區 肝癌致死率為何?(A)3%(B)30%(C) 5%(D)50%。 73. 斯徒昂特(Stuart)所提出家庭的五項特質,不包含下列何項?(A)家庭成員之間可能沒有血緣關係 (B)家庭成員可能沒有 = 3%0 住在一起 (C) 家庭成員可能沒有生育下一代 (D) 家庭成員之間可能沒有承諾與責任。 74. 卡加利家庭評估模式(Calgary Family Assessment Model)的評估架構中不包括下列何者?(A)家庭的優勢 (B)家庭的發展 (C)家庭的結構 (D) 家庭的功能。 391100/159 子女 XIE 14pp 众(information idlove)

微積分的問題，雙倍三倍的概念

27-30 MODELING, APPLICATIONS 27. Exponential growth. If the growth rate of a culture of bacteria is proportional to the number of bacteria present and after 1 day is 1.25 times the original number, within what interval of time will the number of bacteria (a) double, (b) triple?

求解38.40.🙏🙏

(38-41) SWE “ one Frederick Douglass was a black man who fought to end slavery and make the US a better country. He was born in 1818 to a female slave. At the age of six, Douglass was sent to do hard labor on a large farm. He and about 150 other slaves lived in a cruel environment. They had to deal with regular beatings if they_38_hard enough. He was later sent to work for Edward Covey, a farmer known for how badly he treated slaves. One day, Douglass fought back 39 of his beatings. Other slaves protected Douglass, showing how weak Covey actually was. In 1838, Douglass found a way to run away from Covey's farm. He headed north to New York, where 40 Finally, as a free man, Douglass began working as a writer. In 1845, Douglass wrote the first of three books that told his life story. Two years later, he founded a Black newspaper. In his later years, Douglass worked for James Garfield, the president of the US. Throughout his life, Frederick 41 during a difficult time in the US. Douglass was 11) slavery x slave B labors throughout HER B (C) with 38. (A) were not worked (B) do not work AC (C) did not work (D) are not working 39. (A) against 反對、抵抗 (B) to (D) at CA 40. (A) he became a slave of a writer (B) slavery was not accepted by law (C) nobody expected him to be rich B (D) slavery was important to big companies 41. (A) a symbol of power for all lawyers D (B) a writer that didn't get noticed by people (C) a role model for big companies (D) a successful example that inspired black people

麻煩幫我看 1和2題的答案對不對❓

The Tenth Anniversary of iPhone This year, the iPhone reached its tenth anniversary after Apple introduced it to the world in 2007. Since then, the iPhone has become more and more popular. It is also one of the leading brands in the cellphonie DOHA However, around the time the iPhone came out, some people hadn't expected it to be this big. Sorne had even thought it would never come out. market now "Everyone's always asking me when Apple will come out with a cellphone. My answer is,'Probably never'." David Pogue, Sep. 27, 2006, The New York Times “There's no chance that the iPhone is going to get any significant market share.” Steve Ballmer, Apr. 30, 2007, USA Today “Phone set to struggle" Jemima Kiss, Jun. 29, 2007, The Guardian Ten years have passed, but people have not lost the interest in the iPhone. Instead, they expect more from it. This makes the above comments funny to read now. The iPhone, along with the other smartphones, has made the world a smaller place. Everything about 改艺 smartphones has become so much faster, and people's lives have improved in so many ways. This kind of 建立 年 DHE convenience has created a strong bond between people and their smartphones. Don't think so? Let's play a game then! Ask your friends not to touch their smartphones and see how long it takes before they do. Don't be surprised by how quick that is. After all, based on the information collected by a screen lock app, most people check their phones up to 110 times a day. Just when you think smartphones can't get any better, smartphone companies keep coming out with new models. Keeping people interested is important to them, so this trick never gets old. Apple just showed the world their best and most expensive model ever to celebrate their tenth anniversary. Although some people feel the new iPhone costs an arm and a leg, many of them are still interested in it. Even so, it's exciting to imagine where smartphones will take us in the next ten years. Vocabulary anniversary週年纪念日 brand 品牌 significant 有意報的;顯著的 struggle 掙扎 instead 反而 bond 聯結 Screen lock app 屏幕鎖應用程式