哪一個段落沒有主題句？ 我覺得是第一個，對嗎？ 要怎麼替這個段落寫出主題句呢？

2 Despite different home cultures and countries, international students' main overall motivation is the desire get out on their own, to carve out a new direction in their lives. "Foreign students" do not casually abandon the comforts of family and cultural ties; they have done their homework on Canadian schools. All their preparation, though, cannot prepare them for the loneliness and ongoing difficul- ties they face, from cold winters to financial issues related to the higher tuition fees they must pay. Some students, though, emigrate to escape those same tight- knit families and bonds that others find so painful to leave behind. A Macleans "On Campus" report notes that family expectations may be opposed to students' visions for themselves and lead them to reject accepted values and career paths in their hometowns and countries. Csilla, a web-design student at Waterloo admits, "I was always supposed to enter my family's restaurant business in Budapest, but I felt suf- focated even working part-time as a server. Web design is my passion, and I wanted 12: CAUSE OR EFFECT [- a completely fresh start, something that is completely my own ("International Stu- dents"). Finding independent paths to their own dreams is the key here, whether students choose those paths as a result of personal ideals or as a reaction to pre-set future plans.

想問3-9的a跟c

Problems 3-1. Explain the difference between *(a) random and systematic error. (b) constant and proportional error. *(c) absolute and relative error. (d) mean and median. *3-2. Suggest two sources of systematic error and two sources of random error in measuring the length of a 3-m table with a 1-m metal rule. 3-3. Name three types of systematic errors. *3-4. Describe at least three systematic errors that might occur while weighing a solid on an analytical balance. *3-5. Describe at least three ways in which a systematic error might occur while using a pipet to transfer a known volume of liquid. 3-6. Describe how systematic method errors may be detected. *3-7. What kind of systematic errors are detected by varying the sample size? 3-8. A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative error caused by this result if the mass of gold in the sample is (a) 500 mg. (b) 250 mg. V(c) 125 mg. (d) 60 mg. 3-9. The method described in Problem 3-8 is to be used for the analysis of ores that assay about 1.2% gold. What minimum sample mass should be taken if the relative érror resulting from a 0.4-mg loss is not to exceed *(a) -0.1%? (b) -0.4%? (c) -0.8%? (d) - 1.1%? 3-10. The color change of a chemical indicator requires an overtitration of 0.03 mL. Calculate the error if the total volume of titrant is percent relative (a) 50.00 mL. (c) 25.0 mL. 3-11. A loss of 0.4 mg of Zn occurs in the course of an percent relative analysis for that element. Calculate the error due to this loss if the mass of Zn in the sample is *(b) 10.0 mL. (d) 30.0 mL. 190 (c) 188 (d) 4.52 x 103 4.63 x 103 4.53 x 10 ³ √6 *(a) 30 mg. (b) 100 mg. *(c) 300 mg. (d) 500 mg. 3-12. Find the mean and median of each of the following sets of data. Determine the deviation from the mean for each data point within the sets, and find the mean devi- Vation for each set. Use a spreadsheet if it is convenient. *(a) 0.0110 0.0105 (b) 24.53 0.0104 24.68 24.81 24.77 39.61 862 (f) 850 MA 3-13. Challenge Problem: Richards and W the molar mass of lithium and colle data. 24.73 Experiment 1 2 3 4 5 6 194 447 X 10 7 448 X 107 4.58 X 10 (a) Find the mean molar t workers. (b) Find the median molar ma (c) Assuming that the cam molar mass of lithium is the absolute ertor and of the mean value demi Willard. (d) Find in the chemical ues for the molar mus since 1910, and ag a table or spreadshera 1817 given in the a Richards and Willd. Com mass versus year to la of lithium has chang Suggest possible abruptly about 18 ant de (e) The incredibly deals Richards and W that major changes will occur. Disc calculation in pat (f) What factors ha since 1910? (g) How would you mass? 6See Chapter 2 of Applications of Microsoft Excel in Analytical Chemistry, 4th ed., for information about statistical 7T. W. Richards and H. H. Willard, J. Am. Chem. Soc., 1910, 32, 4, DOI: 10.1021/ja01919a002. built-in statistical functions. "Answers are provided at the end of the book for questions and problems marked with an asterisk The I of ₂ or inc rce of able vas error c often in individu ate resul data in rtainties. dimensio andom e analysts The result

請問要把vascular cambia翻成中文的話，要怎麼翻才合適？

怎麼用迴圈做這題python

CH05-控制結構一園第三週上課用 - PowerPoint 動畫 投影片放映 校园 檢視 EndNote X9 ACROBAT EverCam ||| 文字方向。 10 口 国安恒滿能寻找 PWS 相片檢視器 電子郵件(E) 燒錄(U), 開啟(O) 習題3. 輸入正整數n,以如下的Leibniz 法計算圓周率(共1項) 1 = 4*(1 +*++*+...) 0 按一下以

請問這題怎麼解 要用什麼公式？

In 2014 the Philae spacecraft became the first artifact to land on a comet. Unfortunately, Philae bounced off the comet's surface and ultimately landed in a nonideal location. After its first contact, Philae was moving upward at 38 cm/s, and it rose to a maximum height of about 1 km. Estimate the gravitational acceleration of the comet, assuming it's constant (not a very good assumption in this case).

請問第七題怎麼解

60 s, turn 90 20 km/h for 2.0 min, turn 90° to the point, (a) how far are you from your starting point, and what direction relative to your initial direction of travel are you? V During volcanic eruptions, chunks of solid rock can be blasted out of the volcano; these projectiles are called volcanic bombs. Figure 4-22 shows a cross section of Mt. Fuji, in Japan. (a) At what initial speed would a bomb have to be ejected, at angle 0o = 60.0° to the horizontal, from the vent at A in order to fall at the foot of the volcano at B, at vertical distance h = 2.60 km and horizontal distance d = 9.40 km? Ignore, for the moment, the effects of air on the bomb's travel. (b) What would be the time of flight? (c) Would the effect of the air increase or decrease your answer in (a)?onatlar slow orl w moito Movisio Olovo vibolov te tootsodio dos olvistatani se moltotib nur no vodo as vd botu 29 vd baidot otsi Nomstl moll bottom 12 A plane flies 5 then 1100 km sout) trip, what are the displacement, the velocity, and (e) is 13 An astronau of 4.5 m. (a) Wha eration has a ma minute are requ period of the m 14 A basebal mum height al after reaching that is 86.0 m (a) What may ball? (b) How the ball strike blitt 00 Troede Vibolov sister sam 12 d B 15 The ran also on the place to plac broad jump (where g= by how mu instead in 1 Figure 4-22 Problem 7. 8 Oasis A is 90 km due west of oasis B. A desert camel leaves A and takes 55 h to walk 75 km at 37° north of due east. Next it takes 45 h to walk 65 km due south. Then it rests for 5.0 h. What are the (G) magnitu Cia

4.求解🙏🙏🙏

The dark reaction in photosynthesis is limited by A) CO2, temperature, and light B) CO2, light, and water C) water, temperature, and CO2 D) oxygen, water, and temperature Biborot

會計求解 沒有保留盈餘是不是計算不了淨收入

Sa DA 1 點 kkeeper 1y. Sancu M013Uuog) Uyma Dr Sa Mi 啟 Llabilities we - )TUInnT apital一+ 唔 Share Ca 8 Wi 0 Retained em ! 8 W000 Aceeounts pmyu ble 5 績 1 Acegunts recelv0 同: Di 5000 人 Totnlequity and lt ilit 7 1 ce5,00( instructions sition, wxreet statement Of hima aposI 的 ancli 了- gfollowing finar 二 has compiled the fol g ing ground in theLake District, has compl EII4(LO 5) Bear Park Ltd.,aCamp information as of December 31, 2020 下 60.0( Notes payable , Revenues during 2020一camping fees f140.000 es during 2020 150, Revcnucs during 2020一general Store 47,000 nhand 2,S0 A ble IIO00 讓 uppl so4 還 20,00r 是二人 ke 全 Share capital一ordinary axh on han 20, 交加 Original cost of equipment 105,500 Ruained.s85u 140,000 Fair vaJuc of equjpment Instructions \泡 Delermine Bear Park's net ineome for 2020. IN 9 Prepare a statement Of financial position for Bear Park Ltd- as ofDecember 31, 2020- LI5 fto 5) Presented below js financial information related to the 2020 operations of Delgado ruises SA Maintenance and repairs expense RS$ 97,000 Urilites expense 10,000 Sajaries and wages expense 144,000 Adyvertjsing expenSe 3,500 Ticket revenue 342,000 Ouher comprehensive income 4,200 tructions are he 2020 jncome statement and comprehensive income statement for

Beta氧化的問題 我後來訂正的算法是 8次氧化跟產生9個丙酮酸（包含最後的那一個） 一個丙酮酸=1ATP+3NADH+1FADH2 一次氧化的1FADH2+1NADH 然後我是用FADH2=1.5ATP NADH=2.5ATP去算的 結果是122ATP 請問是我的算法... 繼續閱讀

ko 才ry er 92. bactetia 進行電子傳遞位置?那裏產生 ATP? “4上//92 細胞膜,細胞膜 “(8B細胞膜,細胞質 2 mg '細胞禮 18c 飽和脂肪酸若進行5氣化可以產生多少AIp? 7 有 人7 146 (Bl148。 2 (0129 (0106 //@ezy/ 有 5 克222/ /222/ /- 5 狂飼,

有人能幫忙嗎

(mol 二amoL0nund (品 :(可“0 "(pueIIIOI 0=I991 絡還 “此之 8c//t+ +8/+9/+$/6 葛提。 竺發一學放 6 [0 (CamoLund (( =-xOinduDIegA3 =豆 :OureuuJop Ialol umlar IT=+ al :(C (to) Ta3ueIUIIIOT ~ mol :(x)tums Jop :于生嵌 x噁荐1葛二WT.閏因( (Go0ums 勞還WY 陛匡盟Ouleu 林‧生他所此嚼x噁世[芽硅一姓 加 續仿加埠中吃申放弄及書潑2<一淹坑隆 / ~全 人王1說3明抽蚤Y寅所 msl 吃四章 9 4堵聞 印。 做書|g塗竹。示章所中手中 人本DupuaruopueD 一wsrLmoe :Ct0aauarurrzor 上