看了解析還是沒辦法理解 請問這題怎麼解

樂樂將墨水以濾紙層析法分析,她將墨水滴在起始線上,將濾紙放入展開 液中,在展開液上升至停止線時終止層析。待濾紙乾燥後,觀察發現甲、 乙、丙三種色素之相對位置如附圖;已知:Rf值(Retention factor value)=色素上升距離/展開液上升距離 Rf值與色素及展開液的特性有 關,可做鑑定之用。下列敘述何者錯誤? 停止線- 層析 起始線- 甲乙 ○(A)甲色素的 Rf 值大於 0.5 (B)甲色素與展開液間的吸附力最大 (C) 以水當展開液時,丙色素的 Rf 會最大 (D)此實驗中物質的分離為物理變化。 解析:(C)以水當展開液時,丙色素距離起始線最近,丙色素的 Rf 會最 小。

想問錯題 謝謝

74 黑檢請書 語文領域×生活圖表題 格格不入的紅貓 Rosie Unit 32 Rosie, the Red Cat Posi Sandra wrote a book report about Rosie, the Red Cat. Name: Sandra Date: November 11th Book Report Book: Rosie, the Red Cat Where does the story take place? In a small cat town. What happened in the story of the book? Though Rosie is the only daughter in the Black family, she has not been treated well since she was born. This is because Written by: Elsa Young Who is in this book? Mr. Black a fifty-year-old black cat, who has two sons and a daughter proud of his sons, who are as black as him disgusted with his daughter because she has nothing in common with him values boys more than girls Mrs. Black she is different from her family a forty-five-year-old black cat, who is a in many ways. For example, she sometimes plays in the mud with dogs and gets dirty, which makes her parents very angry. What's more, she doesn't drink milk as her brothers do. Tea is her favorite. Rosie feels troubled because her family is indifferent to her. When she feels down, she sings. She believes that if she keeps singing, something good might happen. The story ends with a song written by Rosie. It becomes a hit in the cat world. What I think of the story... housewife *seldom sides with her daughter or speaks for her because she is afraid of her husband *unhappy and silent Charcoal * a twenty-year-old black cat, who loves sports and is good at catching mice *strong and healthy Ebony *a nineteen-year-old black cat, who is his father's favorite *smart and handsome Rosie 290字|建議作答4.5分 1. What 字證 (A) Un (B) PL (C) S (D) W A 2. Wh (A) an eighteen-year-old red cat, who loves dancing with mice and makes friends with dogs *has a beautiful voice *often made fun of by her brothers I feel sad about the way Rosie's family treats her. Family should love each other. 3 indifferent 冷漠的 value 評價 silent 安靜的 細節 UP L 【細節 推論 B 19/11

請問這一題even不是甚至的意思嗎?為什麼加了so會變成即使如此謝謝

Subject: Hello guys, Welcome back to work 歡迎來工作 Happy New Year! Hope you all had a great holiday, and welcome back to work This year, we'll be as crazily busy as before. For the first quarter, we're going to make costumes for The Land. I believe most of you, like me, read the story during the break because the boss told us to. Then, you should all know that The Land is a story about kings and queens of five countries. For any story like this, soldiers appear quite important in the North South West Sea People East movie though most of the audience seldom notices them. Even so, Bob Shaw, the director, is going to use a lot of soldiers in the movie, and he said the soldiers in each country must look very different to let the audience quickly tell which country they belong to. For that, we have to make over one thousand costumes just for those soldiers. So, let's start the work with this simple but biggest part of the movie costumes as a warm-up. I already have some ideas about the soldiers' beards and hair. Please take a look at the picture in the e-mail, and feel free to make changes and share with everyone in our first meeting on Tuesday. Best wishes, Una

想問一下選擇2跟選擇3

food value grass •People eat their meat. •People use wool to make clothes. trees • People eat their meat. • People drink their milk and turn it into cheese. (C) Their tails point the same way. (D) They usually live for over eight years. Long working hours are a problem in Taiwan. People in Taiwan often work longer hours than people in other countries. In fact, in 2017, working hours in Taiwan were the fourth longest in the world. To protect the workers, Taiwan decided to make some changes to the labor law in 2018. Here are some examples. 1. Workers need to have at least one day off every seven days. 2. The working hours on a work day can't be over eight hours; for every four hours, workers need to take a break for half an hour. Also, workers can't work more than 40 hours a week. 3. When workers need to work more than eight hours a day or 40 hours a week, companies need to pay them overtime for each hour. 4. Workers can't work more than 12 hours a day, and their overtime working hours can't be longer than 54 hours a month. g lifespan 壽命 wool綿羊毛 value 價值 tail 尾巴 (B) point 指向 1. Why did Taiwan change the labor law? (A) To protect companies' rights. (B) To have workers get enough rest. (C) To help people make more money. (D) To make workers' overtime pay lower. 2. Gabriel works eight hours a day. However, he came into the office at 9 a.m. yesterday, took two 30-minute breaks, and kept working until 8 p.m. How many hours does his company need to pay him for overtime? (A) Two. (B) Three. (C) Eight. (D) Eleven. (A) Who is NOT following the new labor law? (A) Rose worked for 55 hours last week. (B) Nathan only needs to work four days a week. (C) Linda worked overtime for 25 hours last month. (D) Sandy worked every day without any days off last month. g at least 至少 off 休假 overtime 加班(費) 一、依提示作答。(每題3分,共6分) 1. Selena is a terrible singer. (用sing改寫句子) Selena sings terribly, 2. Meg runs more slowly than all the other students in the class. (H) Meg runs the most slowly in the class 翻譯。(每題3分,共9分)

請問23 那個上面的答案不一定是正確答案🙂

#ex. h. 1. 1417) 一令 ex. 規程綱要 北 等腰三角形外心a+(0-1) 最高,效力最强 D20 ●困難.原則性: 20. Tyler is a famous magician. Tonight, Tyler needs complete this magic show. but a cup, a ball, and a pencil to 内容简潔 (A) 21 D) 22. (A) that (B) how (C) when (D) what 22. My math is so bad that I don't think I have (A) something (B) nothing (C) everything (D) a few things O 21. Barbara is extremely proud of MORELO her son did to save people's lives as a firefighter. hope of passing the test. 5231 a lot of fun. (3) 24. O 24. Helena said she would give you a hand if you need it. ote y (A) 25. (A) much (B) little (C) any few (D) many more Keeping a dog or cat takes a strong sense of responsibility but (A) bringing (B) is (C) has (D) to get (A) what (B) that (C) if (D) there of my sisters are older than I am. I'm the youngest of the three children in my family. (A) Both (B) Few (C) Most (D) Some (D) 26. The (A) C 26. The weather is always changing, so I don't know out. (A) how (B) what (C) where ) 27. It took the police lots of time (A) and found out (B) find out (D) whether I should bring an umbrella when I go who entered Liu's house and killed her one year ago. (D) to find out (C) finding out 28. Many famous people visit this restaurant. Popular singers like A-mei and Jay Chou here with their friends. (A) to be often seen (B) often seen (C) are often seen 29. You can come to see me in the office on Wednesday or Friday. (B) Another (A) Either 30. Betty takes care of the poor rabbit (A) that (B) whose (C) which (D) and are often seen day is fine. (D) One (C) Other right ear is hurt because she is an animal doctor. (D) whom 31. Everyone in the town feels strange that all the cows at Mr. White's farm died in one night. has never been anything like this before. (A) He (B) It (C) That (D) There 32. When my boss found his ID card he felt worried and reported it to the police right away. (A) stealing (B) stole (C) is stolen (D) stolen than in Taiwan.

英文的數學題 求解33.34題

33. The monthly salary of Mr Chan is $18 000. He spends 37.5% of his salary on rent, 45% on other expenses, and he saves the rest in the bank. (a) How much does he save each month? (b) If his monthly salary and the rent remain unchanged but he wants to spend $1 050 more on other expenses, find the percentage decrease in his savings. 34. The owner of a light shop bought a crystal light for $x. He set its marked price 60% above the cost price, and later it was sold to a customer at a discount of 25%. (a) Find the profit per cent made by the owner. (b) If the customer bought the light for $3 780, find the value of x. lain (c) If the light was sold to the customer at a discount of 35% instead, did the owner still make a profit? Explain your answer. 5. Martin used $48 000 to buy 4 000 'lucky windmills' from a manufacturer. At a New Year Fair, he sold 3 500 windmills at a price 75% higher than the cost price and the rest at a price 25% lower than the cost price.

That sport is far ___ . I think I’ll watch you do it instead. 答案是too extreme 為什麼不能用extreme

求11 13 16 19 講解 ，這四題不太懂 謝謝🥹💕

and he doesn't even know her name. (A) daughter (B) friend (C) stranger" (D) teacher 陌生人 2. (B)Every time my family goes out, my brother is always the last one to often have to wait for him for a long time. 3. (A) cultures (B) interviews (C) notebooks (D) dictionaries 4. (My dad is a 5. (A) cheer up (B) get ready (C) give up (D) slow down D₂ )It was Tina's dream to travel around the world. She has traveled to many countries and experienced different (A) hopes (B) planets (C) value (D) presents 6. (.)The new policy about women's right for education has country. (A) engineer (B)gender (C) allowed (D) raised 7. (B.) A:Do you like Jackson 's song of "Singing with your heart"? B: In my it's the worst one of the Top 10. 8. ( ·0 (A) hopes (B) opinion (C) plants (D) presents )Please send me 9. (A.) on your trip so I can learn some different culture of other countries.. (A) lawyers (B) presents (C) genders (D) e-mails Ken is looking for a new job because he doesn't want to be a (A) lawyer (B) pleasure (C) stranger (D) daughter 10. ( .(() ) A: Mom and Dad won't be home until next Wednesday. B: Can I use mom's (D) culture 4. 15. ( 二、文法測驗: 11. 16. 7. ( He likes to talk to people and explain how great the cars are. (A) mailman (B) policeman (C) salesman (D) fisherman Although the house has been lived for ten years, it still keeps its high and attraction (A.) do The salesman has sold five cars this month, 12. (A) has (B) hasn'tPP (C) does (D) doesn't 13.((. )I can't go to the movies with you because I D without asking her first? (A) present (B) pleasure (C)notebook 18. B Thanks to my friends, the work can K. ite on time. (B) have done (C) be done (D) been done hasn't he? We (A) have told (B) told (C) was told (D) been told Sean seldom cleans his house, (A) doesn't he (B) does he many discussions in the anymore. not to go home late tonight. )A: I have no idea (A) where to buy (B) what to bring (C) why to go (D) how to read ? (C) has he (D) hasn't he for the interview. B: An honest heart and nice smile. You've finished your science report, (A) did you (B) didn't you (C) haven't you (D) have you ) "Can you tell us who was watching movie with you this afternoon "? is a common question that popular stars on TV interviews. (A) will to be asked (B) what to be think (C) how to be asked Whether my aunt this afternoon or not, my grandma's still be held on time. We have prepared it for three weeks. (A) is coming (B) comes (Ⓒ) will (C) will come (D) has come 現在式代替來 D) are often asked birthday party will

請教這題🙏

通常 W (30~33.) People want to give gifts on special holidays. How much do they usually spend on gifts? A study shows people spent about $1,000 on gifts in 2020. This is about 10% more than that in 2018 and 20% more than that in 2016. Here are ways to help you shop smartly. First, there is no need to buy gifts for everybody. You can show your love and care by writing a card. Next, shop with a plan. It is great for you to make a list before going shopping. 傅培 Third, if you don't need a lot, don't buy sets Clerks may talk you 寶石 into buying more by showing you sets because they look like a great value. If you don't think carefully, you probably spend more money on useless things. Fourth, don't buy more to save more. Clerks might ask you to buy three because you can get one for free. In fact, smart shoppers never shop more than they need. So, think twice before you buy something. value useless (C) 30 Which is right about the cost of gifts on holidays? (A) (B) (C) US dollars US dollars 1,000 800 600 4001 200 0 1,000 800 6001 400 200 0 2016 2018 2020 2016 2018 2020 D 1,000 8001 600 400 10 200 US dollars US dollars 0 1,000 800 600 400 200 0 2016 2018 2020 2016 2018 2020 jennyin =)^^^x 0₂/ = 103 J^^^' ..J

求28c 問題為:「在圖中，AOB 是一個半徑為 r cm 的扇區。 扇區的角度是 80°。 該扇區的周界和面積分別為 x cm 和 y cm。 如果 x: y=2:1, 請找出r」

B Extended Questions 28. In the figure, AOB is a sector with a radius of r сm. The angle of the sector is 80°. The perimeter and area of the sector are x cm and y cm respectively. If x : y = 2:1, (a) express x in terms of rt and r, (b) express y in terms of n and r, (c) find the value of r, >>>Strategy 3 rcm 80° A 0 Fig. 12.155 (d) find AB.