想問一下這兩句有什麼不一樣 One of my classmates who was absent is very sick. One of my classmates who is very sick was absent. 答案是上面那一句那下面那一句為什麼不行

誰能解釋一下為什麼？下面英文解答看不懂

2-41 The 0-H hydrogen in acetic acid is more acidic than any of the C-H hydrogens. Explain this result using resonance structures. O=U H -H Acetic acid \" HH :0: :0: II C H-c H-C H- C=0 H H H H H H The O-H hydrogen of acetic acid is more acidic than the C-H hydrogens. The-OH oxygen is electronegative, and, consequently, the-O-H bond is more strongly polarized than the -C-H bonds. In addition, the acetate anion is stabilized by resonance.

為什麼第五題是（D)?

起 time. circulation et gi o quality o'Q A 4. Besides doing my homework after school , reading novels took up much of my (A) leisure Poppe by (B) school (C) occupied 5.15 to by (D) labogatory mi lehet A 5. Three volunteers have organized 5-13 6 a community watch program for the purpose of combating the crime rate. Pahina (A) risen zure EH XB) rose 2 EFT (C) rises EF (D) rising EHP b az . I lik re 6 TL

請教這題🙏

划 叫同。 - BV mole 1 gram (7) 10 德國科學家哈伯發現廉價的製造的方法,其化學 反應式為(H. + N. →NH(未平衡),若將 30 公克 的氫氣和 84 公克的氮氣反應,最多可產生多少公克 的氨氣?(原子量:N=14,H=1) 10 (A) 98 3 H ₂ + 1 N2 2NH3 (B) 102 Hz:309 6+78 - (C) 108 NH₃:849 98 +84 (D) 136 (0. 9 20 lini 12 xo 14+ 12

想問是這七題是這樣嗎？ 1.A 2.B 3.C 4.D 5.B 6.C 7.A

1. Black lung disease is working in a coal mine for years. A. connected with B. contradicting C. adapting to D. used to 2. Despite the pop festival passed off peacefully. A. the people worried about the safety B. worried the safety C. people's worries of safety D. the safety 3. The secret the success of Taiwanese cuisine is fresh and diverse ingredients. A. for B. of C. to D. in 4. He the project's success a sophisticated computer program. A. resulted from B. argued against C. substituted for D. attributed to 5. In many countries of the world, having a morning cup of coffee is important the start of the day. A. such as B. like C. as it marks D. yet customer 6. Many dot.com companies have learnt that technology can never service. A. tie to B. owe to C. depend on D. substitute for 7. The politician expressed his concerns about nuclear energy and decided to fight policy A. against the

請問有人看得懂嗎😂

Genetics 普通生物學 UNIT THREE 觀念11: DNA定序(DNA Sequencing) 端 單股DNA和帶有放射性 1. Sanger法(Sanger method)或Sanger雙去氧鏈終止法(Sanger dideoxy chain termination method) : 1. 以5碳糖上第2和第3個碳均去氧的核苷酸為材料,合成的DNA之3', 不能再接新的核苷酸,造成DNA终止。 2. dsDNA加熱變性,快速冷卻成單股DNA, (PP)標示的primer 配對。 3. 反應時分成四管: a) #AZDNA+primer+DNA polymerase+4dNTPs+ddATP b) ADNA+primer+DNA polymerase+4dNTPs+ddTTP c) ADNA+primer+DNA polymerase+4dNTPs+ddGTP d) 單股DNA+primer+DNA polymerase+4dNTPs+ddCTP 4. 終止反應,並用聚丙醯凝膠(polyacrylamide gel) 電泳分離。 5. 顯影後判讀X光片即可讀出DNA序列。 6. Frederick Sanger 因為這個方法獲得1980年諾貝爾獎。 Primer 5 OH 3 3' -CTAAGCTCGACT Template dCTP, dGTP, DATP, DTTP + ddATP - GATTCGAGCTGddA GATTCGddA F GddA + ddCTP GATTCGAGddC GATTddC + ddGTP - GATTCGAGCTddG GATTCGAddG GATTCddG ddG + ddTTP - GATTCGAGCddT -GATddT - GAddT G 3' 12 11 10 G C uuu9876543 21 5 As Tcc AccTT AG Autoradiogram of electrophoresis gel Sequence of complementary strand 500 1610 T天就在 下一秒就看到,

請幫我對答案 謝謝❗️

14.單字文法選擇卷 麻辣 年 卷 「班 27 1. There is no second way to win first prize. All you need is more (B) sweaters (C) problems (D) land singing last night, but I didn't know who she was. Her voice was 號 得分 姓名 Im (A) practice ad 2. I heard beautiful (A) anyone (B) everyone TI 3. Mr. Logan needs an excellent secretary u with everything in the USA. (C) someone (A) which (D) no one English is good enough to help him (B) whose (C) that (D) who 4. Nora: We need to hurry. The train is going to leave in five minutes. Tony: Don't worry. We are there. (B) perhaps (C) quite pasted the poster on the classroom door? Kim: I don't know. It's already there when I got here this morning. D (A) yet (B) 5. Ms. Liim: Who was the one (D) almost (B) repeat Lo (A) who (B) x (C) that (C) 6. I am sorry I didn't get your point. Would you please (D) which (A) prepare (C) answer what you just said? (m) © Jerry seldom has fast food, and (D) start (A) neither do I We eat a lot of fruit and vegetables. (B) neither has I (C) so do I (D) so has I (D) 8. This is the book I borrowed from the library. I just finished reading it. (A) what (B) who (C) whose (D) which (B) 9. Ms. Lee has told Sam many times, but he makes the same mistake again and again. (A) then (B) still (C) finally (D) over (D) 10. Uncle Joe's was the restaurant I usually had lunch when I studied in Taipei. (A) that (B) what (Q where (D) which ( 2.) 11. “Quiet" and "quite” look almost the same. It's not easy for some students to them right. (A) spell (B) dig (C) kick (D) wipe ( ( ) 12. I am sure Jack will like your idea about the trip to the UK. Just tell him. (A) who (B) whether (C) that (D) what (B13. I just that Mike lost his job, and I was so surprised. He didn't say anything when we had dinner last week. (D) kept (A) turned (C) learned (C) 14. Our math teacher always us to do a lot of homework. It's so tiring. (C) gets (D) studies (A) takes from her husband for two ( 0) 15. Nancy has to go on a business trip, so she will be months. (D) passed (A) parted V (B) made (B) asks (C) failed (B) marked

請問A錯在哪？

4 64. Please choose the grammatically INCORRECT one. All don't like the feeling of being laughed. (B) John found out that the love letter had been sent to the wrong address. (C) My English is so poor that I have difficulty making myself understood. (D) English is spoken in countries like America, Britain, and Australia.

SCENARIO 8-3 To become an actuary, it is necessary to pass a series of 10 exams, including the most important one, an exam in probability... 繼續閱讀

21題 教教我QAQ

Section 11.3 Angular Momentum J-s behind rmv a he ur 265 = ? a ter 30. Example 11.1: A 58.1 Iw COMP string and whirled at 18. Express the units of angular momentum (a) using only the funda- momentum of magr mental units kilogram, meter, and second; (b) in a form involving the circular path. Fir newtons; (c) in a form involving joules. marw horizontal and (b) the 19. Use data from Appendix E to make an order-of-magnitude esti- 31. Example 11.2. A stai mate for the angular momentum of our Solar System about the Max 27 the end of its lifetime galactic center. mu = 17.293 of radius 4.96 X 10' 20. A gymnast of rotational inertia 63 kg•m? is tumbling head over heels dwarf of radius 4.21 with angular momentum 460 kg•m?/s. What's her angular speed? 17.99 acted on the core, fine A 660-g hoop 95 cm in diameter is rotating at 170 rpm about its 32. Example 11.2: Astro 22. A 1.3-th-diameter golf ball has mass 45 g and is spinning at central axis. What's its angular momentum? L: 1W=0-66*(0-95) x 140x277.10 km and determin core that collapsed to 3000 rpm. Treating the golf ball as a uniform solid sphere, what's ing with a period of 4 its angular momentum? 18-3 33. Example 11.2. The s 10-598 rpm With her arms outstre Section 11.4 Conservation of Angular Momentum tational inertia is 3.5 23. A potter's wheel with rotational inertia 6.20 kg•m? is spinning (Fig. 11.6b), her rot freely at 20.0 rpm. The potter drops a 2.50-kg lump of clay onto her final spin rate? L = 6 2 x 2-1 = 12-99~13 - 2x2 22 13= 60.48)" x 2.5 W W = 2 . X z W = 20x2T 60 ²2.1 ~ 1 12.574