B是答案，但波爾氫原子理論不是有能量嗎？

Which issue in the spectrum of hydrogen atoms can not be solved by the Bohr model? (A) The existence of separated series of lines; (B) The relative intensity of each line; (C) The wavelength of each line; (D) All; (E) None.

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?

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

根本看不懂啦＼(￣▽￣;)／

Your report should follow these guidelines, although you may choose how you present it: How to Write a Mathematics Report In writing your report, remember that you are writing up a mathematical story and so, like all good stories, it will need a beginning, a middle and an end. More formally, the main components of this writing style are: Introduction, Formulating the Problem, Solving the problem, Discussion of Results, and Conclusion. We will now consider some of the detail in each of these aspects. Introduction This is the beginning of the story. Give a brief explanation of what the problem is about what the goals of the report are and what will be presented. Assume that your reader does not know what the problem is about or how to solve it. Formulating the problem Translate the situation into a maths problem. Explain how you will begin to solve the problem and break it into simpler stages. Discuss any assumptions made. What quantities are variables and which values are fixed? You may use sub-headings if they assist you. Solving the Problem Show any calculations and mathematical reasoning that you use. (Assume that your reader does not know much maths). Do not show the same types of calculations repetitively. Just give one or two examples of a calculation and then put the rest of the results in a table. Use diagrams or graphs if they assist you. Make general remarks about what you observe in your calculation results and, possibly, why. You may want to criticise your work and go on to improve it in the next section. Explain what you will do next and why. Discussion of Results - Evaluate and Verify Summarise your results if necessary and refer to your mathematical reasoning. Justify procedures used. Interpret your results. First, are they reasonable or does something not look right and need further investigation or checking? Is there a decision to be made? Here is where you should present the decision-making process. Evaluate the strengths and limitations of your solutions. Conclusion Summarise your findings. Refer to the problem outlined in the introduction. Make sure that you answer the question that was asked. Make recommendations. No new material should be presented here.

求解 謝謝！

10 Lesson One 4. No one could stop the two from finishing the race. As they slowly approached the finish line, the 65,000 spectators in the stadium cheered loudly for them. Derek didn't win the gold medal, but he still became a champion in everyone's mind. After the race, Derek expressed his thoughts on why he had insisted on finishing the race. “It doesn't matter how hard it is, but you must finish what you started." Derek Redmond's persistence made him a true legend. 5. 全新試題 1. 2. 3. 4. 5. VI. 素養閱讀 According to historical records, the origin of the Olympic Games dates back to 776 BC in Olymp Greece. The first modern Olympics were held in Athens, Greece, in 1896. The symbol of the Olympics, namely the Olympic Rings, consists of five interconnected rin each a different color: blue, yellow, black, green, and red. These rings represent unity among the f continents: Africa, the Americas, Asia, Europe, and Oceania. The Olympic flag was adopted in 19 and first presented at the Summer Olympic Games in Antwerp, Belgium in 1920. The motto of the Olympic spirit is “Citius, Altius, Fortius," which is a Latin expression mear " What is important in the Olympic Games is not winning but tal

8 11 15 14教教偶

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為什麼第一段的倒數一二行的help implenent是兩個動詞

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