要怎麼證明E、F分別為直線AO、CO的中點？

)29.如右圖,正方形ABCD內有E、F兩點,且四邊形DEBF 為菱形。若菱形DEBF的面積為正方形ABCD 的一半, P() E 且 DE: =√15 ,則正方形ABCD的面積為何? r OR=A (A) 24 2 1 (B)3C (C) 15/3 BOTAV xx4x === B SVEW F (D) 20√ 3 = 4. EVS system 【 109 會考補考4 EV+S (CL)

想問a 謝謝

(C)大淋巴管最後與動脈相連,將淋巴得人心心血官系統 (D)淋巴結收縮可產生壓力,將淋巴往前推肌肉收缩. (v.) 14. 關於植物行光合作用的敘述,下列何者正確? (A)過程中不需要酵素的協助(B)主要產物為氧氣

求解😖請問為什麼19.是depend (然後遇到這種的通常要怎麼判斷😭 每次看到都不會判斷到底要用原型還是ving 還是ved ） 感謝🙏

第16至20題為題組 particles that hit Earth The sun is a huge, fiery globe of gas. Every now and then, it sends out massive waves of charged 16 speeds upwards of a million kilometers an hour. These charged particles interact with our magnetic northern and southern poles, 17 a breathtaking light show that enthralls all its viewers. These light shows are known as auroras. Since Earth's magnetic field is strongest at its poles, auroras because they occur at any appear most brightly near the North and South Pole. They are not 18 time of the year. Auroras appear as slowly moving curtains, bands, spots of color, and a variety of other shapes that shift across the sky. They can also exhibit more than one color at a time. The colors, ranging from purple to green, 19 on the altitude of oxygen and nitrogen penetrated by solar energy. The most common color on view is green because it is at lower altitudes and people can see green the easiest. Photographing the breathtaking auroras is not difficult, but photos don't do them auroras is something that needs to be experienced in person. At.-speed 16. (A) at 20. Viewing (B) by (C) in (D) from 17. (A) serving as (B) checking out 18. (A) regional (B) seasonal (C) reporting to (C) universal (D) resulting in (D) normal 19. (A) to depend (B) depend (C) depending 20. (A) harm (B) wonders (C) justice (D) dependent (D) favors 1104)

為什麼[A(org)]=n[An(org)]成立 (第三張圖equation 7.9) 感謝

Experiment 7 Experiment 7 The partition of Organic acid between Water and Organic solvent Objectives Understand the partition of a solute between two immiscible solvents. Introduction A chemical analysis that is performed primarily with the aid of volumetric glassware (e.g., pipets, burets, volumetric flasks) is called a volumetric analysis. For a volumetric analysis procedure, a known quantity or a carefully measured amount of one substance reacts with a to-be-determined amount of another substance with the reaction occurring in aqueous solution. The volumes of all solutions are carefully measured with volumetric glassware. The known amount of the substance for an analysis is generally measured and available in two ways: 1. As a primary standard: An accurate mass (and thus, moles) of a solid substance is measured on a balance, dissolved in water, and then reacted with the substance being analyzed. 2. As a standard solution: A measured number of moles of substance is present in a measured volume of solution - a solution of known concentration, generally expressed as the molar concentration (or molarity) of the substance. A measured volume of the standard solution then reacts with the substance being analyzed. The reaction of the known substance with the substance to be analyzed, occurring in aqueous solution, is generally conducted by a titration procedure. The titration procedure required a buret to dispense a liquid, called the titrant, into a flask containing the analyte. A reaction is complete when stoichiometric amounts of the reacting substances are combined. In a titration this is the stoichiometric point. In this experiment the stoichiometric point for the acid-base titration is detected using a phenolphthalein indicator. Phenolphthalein is colorless in an acidic solution but pink in a basic solution. The point in the titration at which the phenolphthalein changes color is called the endpoint of the indicator. Indicators are selected so that the stoichiometric point in the titration coincides (at approximately the same pH) with the endpoint of the indicator.

第三格時態，看不太懂 答案是have been erected

still other (D) the butle by ancient tribes as a sort of astronomical calenda about lunar and solar eclipses They are believed to 3 The tribesmen may have used them to make the 4 except that we have no idea why they would have been so much interested in eclipse Some think they may have been a temple, meant for religious or ritual ceremonies. 25m5100t the functions were, it remains a mystery just how those huge stones wer moved to the site and placed in such a circular arrangement. ts are still puzzled how the tribesmen managed to move the heavy stone columns. (C) phases (D) ratios boon bas (C) by accident A 1 (A) theses 2 (A) no longer (B) series (B) not only (D) as a whole 3 (A) erect (B) be erecting (C) be erected (D) have been ere A 4 (A) construction (B) predictin

有沒有人能教我🥹 #1方位判讀 #2地圖投影 拜託了各位

羅盤方位法 A 在B的22.50 實例 A在B的北北東方 則B在A的202.50 則B在A的南南西方 (22.5°+180° 北 「B在A的 |南南西方 3.相對方位的判讀方法:已知A在B的某一方,判讀B在A的方位。 B在A的 象限角法 A 在B 的N22.5°E 則B在A的S22.5°W ACC 方位角法 = 202.5°) 0° 202.5° A ·90° 270° 西 /202.5° 相反方向為 | 相反方向 「南北互換, 南 |相差180° 180° 相反方向為 南北互換, 東西互換 225 圖示 東西互換 北 0° 1225° 度數不變 N. 1225° S W ● 90° 西 -東 270° B E B B A 在B 的 A在B的 |北北東方 南 A在B的 22.5° N22.5° E s 180° 重點停看聽 ● 由兩個已知目標來判斷觀測者在地圖上的位 置(圖2-7) 已知A在觀測者的S60°W,B在觀測者的 S40°E,在地圖上由A、B繪製出相對方位 線,也就是觀測者在A的N60°E,觀測者在 B的N40°W,而相對方位線在地圖上的交會 點,即為觀測者位置。 ▶ 圖2-7 由觀測點反推目標示意圖 60° W W A在觀測者的S60°W) B在觀測者的S40°E N 觀測者 E 60° 40° W. 40% 觀測者在A的N60°EN 「觀測者在B的N40 4.近年來,科技進步下,可以透過行動裝置或導航儀器,直接由全球導航衛星系統(GNSS 定位出使用者的座標,並進一步標示在有座標系統的地圖上。 知識補給站 球導航衛星系統(Global Navigation Satellite Systems 利用衛星訊號來提供全球定位服務的系统

想請問這題的9～11的環烴的condensed structure可以怎麼畫？ 謝謝🙏

57. a. What is each compound's systematic name? b. Draw a skeletal structure for each condensed structure given and draw a condensed structure for each skeletal structure. h HHHHH3)2 D BH, NH√H₂0; Josaphat Br CH3 OH Orkstgo 7. CHHOCH23 9. OH 11. Br 4. (CH3CH2)+C ok 8. CHOCH2CH2CH₂OCH x146 11-trimethylheptane 25-bromo-2-methyloctane Q = --是否可省了 5. 5-bromo-N-ethylpentangmine 6. 2,3,5-trimethyl hexane 這題想請問 1. 3.的-1-是否可以省略?-1-在哪種情形下可以省略? 2. 環烴的condensed structure該如何畫?

想請問第11題 Compensate應該在句中如何翻譯

Questions 09-12 refer to the following article. Bolton Sets Profit Record 09 10 Figures recently released by popular clothing retailer Bolton show that last year's profit margin that of any previous year. Spokesperson for Bolton, Rochelle DeVries, said there was dramatic growth in sales last year for its men's clothing collections. only 20 percent of the store chain's sales come from men's clothes. Last year, that number was up by 12 percent, and gross sales also rose by nearly 28 percent. According to DeVries, the company now its sales staff with cash bonuses based on their sales performances. 11 11 DeVries claims that this commission system is the primary reason for the rise in profitability. Without a doubt, it has benefited the entire company. 12 二12- 傭金制度. 09 (A) totals (B) curtails 12 (A) This is the first time Bolton's (C) represents (D) exceeds 10 (A) Typically (C) Accurately 11 A improves (B) Markedly (D) Fortunately (B) replaces compensates (D) produces 補償 付錢 stores have offered men's clothing. (B) Another clothing sale will be announced in the very near future. (C) The company is planning to add more stores to its chain. (②) Management intends to continue this arrangement indefinitely.

這裡的Working out是什麼意思

Level ★★★☆☆ ♪ 174-05 I Hey, I noticed you bought a new sofa. [he], / [a] / [notist]/[ju]/[bot]/[9]/[nju]/[sofa]. 嘿/我/注意/你/買/一個/新的/沙發。 ♪174-06 How's it working out for you? [hauz]/[It]/[wskiy]/[aut]/[for]/[ju]? 如何/它/發展/為你?

想問這兩題克漏字

1 With thirty-five active volcanoes, Iceland is known as a land of seismic activity. In April 2 bringing chaos to transportation systems across a minor volcanic eruption on the island Europe. The eruption, 3 the Eyjafjallajökull glacier in southwestern Iceland, released clouds of ash that drifted across several countries in northern and Western Europe. For several days, nearly all flight in the region were with hundreds of thousands of passengers unable to start their 4 journeys or _5_stranded abroad. Pec (A) that was (B) there was (C) what was (D) it was QA (A) ended up (B) got involved in (C) gave rise to (D) arose out of