1 chia dong tu 1 i am a student

... FeIII(C2O4)+ FeIII(C2O4)2− ñó khả quang hoạt thấp Khi nồng ñộ oxalat lên FeIII(C2O4)+ FeIII(C2O4)2− bị chuyển thành FeIII(C2O4)33− quang hoạt tốt xảy theo phản ứng sau: (k=3. 31? ?10 6 M -1 ) FeIII(C2O4)+ ... sóng d? ?i ( λ = 550 nm) tạo gốc HO v? ?i hiệu suất lượng tử cao Như vậy, oxalat ñóng vai trò quan trọng việc tạo gốc HO , phức Fe(III) - oxalat bị quang h? ?a tốt so v? ?i Fe(III), phức Fe(II) - oxalat ... FeIII(C2O4)2− FeIII(C2O4)2− + C2O42− → FeIII(C2O4)33− (k=2.75? ?10 4 M -1 ) Ngo? ?i phức oxalat có khả quang hoạt cao ? ?i? ??u kiện ánh sáng mặt tr? ?i, nguyên nhân sắt oxalat có hệ số hấp thụ phân tử cao

Ngày tải lên: 17/05/2017, 21:11

... USA III Read the text: My name’s Yoko I? ??m from Japan III Read the text: My name’s Susan I? ??m from Great Britain III Read the text: My name’s Bruce I? ??m from Australia III Read the text: My name’s ... Countries Languages Canada France China The USA Australia Great Britain Japan Viet Nam a Japanese b Vietnamese c English d English e French f Chinese g English h English, French I Vocabulary: ... N­íc Canada N­íc Mü N­íc Ph¸p II Listen to the tape: III Read the text: My name’s Laura I? ??m from Canada III Read the text: My name’s Marie I? ??m from France III Read the text: My name’s John I? ??m

Ngày tải lên: 18/03/2023, 16:39

... 0 .11 9322 Analysis of Variance for Vitamin C - Type III Sums of Squares Source Sum of Squares Df Mean Square F-Ratio MAIN EFFECTS A: Thoi gian 15 2 .18 2 76.0909 54 91. 58 B:Nhiet 646 .18 7 323.093 23 318 .06 ... Squares Source Sum of Squares Df Mean Square F-Ratio MAIN EFFECTS A: Thoi gian 0.00002 318 52 0.000 011 5926 0 .13 B:Nhiet 1. 22349 0. 611 745 7098.03 INTERACTIONS AB 0.0 011 197 0.000279926 3.25 RESIDUAL ... X 10 4.76778 0.544522 Analysis of Variance for M? ?i vi - Type III Sums of Squares Source Sum of Squares Df Mean Square MAIN EFFECTS A: Duong 14 . 518 5 7.25926 B:Pectin 1. 18 519 0.592593 INTERACTIONS

Ngày tải lên: 07/06/2023, 22:19

... 25.Hai often (wash) his face at 6 .15 . 26.She (play) badminton at the moment? 27.Thanh and Mai always (see) a movie on Saturday. 28.He often (take) a bus to school? 29.We (be) students in class ... (pick) his friend up at the train way station morning. 70.He (watch) a romantic film on TV this evening. 71. You often (do) your homework in the evening? 72 .I (read) an interesing novel at the ... school everyday. 6. Bad students never (work) hard. 7. It often (rain) in the summer. It (rain) now. 8. The teacher always (point) at the black-board when he (want) to explain something. 9. Mother

Ngày tải lên: 30/11/2013, 10:11

... years. A. is living B. was living C. has lived D. lives 2. Tim ______ in three movies already. I think he’ll be a star some day. A. has appeared B. was appearing C. had appeared D. is appearing ... any______ in the company for secretaries. A. situations B. species C. vacancies D. locations 3. She was filling in the ______ form A. application B. applicant C. apply D. appliance 4. People who are ... has written D. had written 12 . When I last him, he in London A. saw-has been living B. see-in living C. saw- was living D. have seen- lived 13 . I was sad when I sold my car. I it for a very

Ngày tải lên: 12/07/2014, 23:00

... not big. 2 I am a bug. I am red. 3 I am a bug. I have a web. 4 I am a bug. I can sip. 5 I am a bug. I can hum. 6 I am a bug. I can hop. 7 I am a bug. Look! What can I do? 8 [...]...Decodable ... storage or transmission, or broadcast for distance learning. Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 21 10 09 08 07 06 05 I Am a Bug by Beatrice Reynolds I am a bug. I am not ... Education, a division of The McGraw-Hill Companies, Inc., Two Penn Plaza, New York, New York 10 1 21. Copyright © by Macmillan/McGraw-Hill. All rights reserved. No part of this publication may be reproduced

Ngày tải lên: 28/04/2015, 16:17

... ho? ?i để tiếp Em pha? ?i trả lơ? ?i câu Quay Em lơ? ?i trả lơ? ?i la? ?i tiếp tu? ?c tu? ?c Trả lơ? ?i Trả lơ? ?i Xo? ?a Xo? ?a Hai từ xinh và lươ? ?i có pha? ?i là că ôp từ tra? ?i nghi? ?a không? A) Không ... pha? ?i trả lơ? ?i câu Quay Em lơ? ?i trả lơ? ?i la? ?i tiếp tu? ?c tu? ?c Trả lơ? ?i Trả lơ? ?i Xo? ?a Xo? ?a Tìm từ tra? ?i nghi? ?a vơ? ?i từ "lành"trong các trường hợp sau: (Vị thuốc) lành >< lành ... tu? ?c Trả lơ? ?i Trả lơ? ?i Xo? ?a Xo? ?a Ví dụ: Da? ?i – ngắn: tra? ?i nghi? ?a về chiều da? ?i Sạch – bẩn: tra? ?i nghi? ?a về phương diê n vêô sinh ô Hiền – a? ?c: tra? ?i nghi? ?a về tính cách

Ngày tải lên: 09/07/2015, 12:43

... 9a 10 d 11 c 12 b 13 b 14 c 15 a 16 b 17 a 18 d 19 c 2 0a Exercise 6 1b 2c 3b 4b 5a 6c 7d 8c 9d 10 b 11 c 12 a 13 d 14 c 15 b 16 b 17 c 18 b 19 b 20d Exercise 7 1b 2a 4a 4d 5b 6b 7d 8a 9b 10 a 11 d 12 d 13 a 14 b ... 14 b 15 d 16 c 17 b 18 c 19 c 20d Exercise 8 1d 2b 3b 4c 5b 6c 7b 8d 9b 10 c 11 c 12 d 13 c 14 b 15 a 16 c 17 d 18 a 19 d 2 0a Exercise 9 1b 2d 3d 4c 5d 6a 7c 8a 9d 10 c 11 a 12 a 13 b 14 a 15 d 16 b 17 c 18 a 19 a ... Exercise 3 1c 2b 3d 4b 5c 6b 7d 8d 9a 10 d 11 a 12 b 13 b 14 d 15 b 16 d 17 c 18 c 19 d 2 0a Exercise 4 1b 2a 3a 4c 5d 6b 7d 8a 9b 10 b 11 b 12 d 13 d 14 b 15 c 16 a 17 c 18 b 19 a 20b Exercise 5 1c 2c 3b 4b 5a

Ngày tải lên: 15/07/2015, 11:00

... ai ! Ca ai ! Chang phai noi Chung toi da b ie t: Tu Dong song 3- Ca ai ! Ca ai ! 0 nai nao ? Bai loang quang t£r dau toi dau ? Ca ai ! Ca ai ! Chiing phai noi Chung t 6i da b ie t: Tu Bien ho ... n ian /i xe,... Kia! Chay di chai tron nhe Hay den day 4- Cho xam kia ai dung co loay hoay Bon cai chan kia mi dau vao dau Con duoi kia nua, kia long duoi cung xam Soi ai! Biet dau duoi vao ... ho 4- Ca ai ! Ca a i ! 9 0 nai nao ? Bai loang quang tu dau tai dau ? Ca o 'i! Ca a i ! Chiing phai noi Chung toj da hidt'j-TCf Bai... ti&nfi l/ilt ( Theo giai dieu bai : •KF0H fiPPLE,

Ngày tải lên: 09/08/2015, 11:00

... food I haven’t seen my sister for ages = It’s ages since I last saw my sister Mary has done a lot of work today I haven’t watched any football matches so far this week Have you had a holiday this ... Eg: I was studying while he was making dinner (T? ?i học ơng chuẩn bị b? ?a t? ?i. ) While Ellen was reading, Tim was watching television (Trong Ellen đọc sách, Tim xem ti vi.) Were you listening while ... very difficult to understand but I get it (B? ?i khó hiểu t? ?i hiểu r? ?i. ) Trong cách n? ?i ? ?I promise…” (t? ?i h? ?a) , ? ?I agree…” (t? ?i đồng ý), ? ?I apologise…” (t? ?i xin l? ?i) , ? ?I advise…” (khun), ? ?I suggest…”

Ngày tải lên: 14/07/2016, 16:11

... 13 2 13 3 13 4 13 5 13 6 13 7 13 8 13 9 14 0 14 1 14 2 14 3 14 4 14 5 14 6 14 7 14 8 14 9 15 0 15 1 15 2 15 3 15 4 15 5 15 6 15 7 15 8 15 9 16 0 16 1 16 2 16 3 16 4 16 5 16 6 16 7 16 8 16 9 17 0 17 1 17 2 17 3 17 4 17 5 He says that he ... We (watch) ……… an interesting program on television last night My wife and I (travel) ……… to Mexico by air last Summer I (read) ……… that novel again during my last vacation I (have) ……… a little ... (sit) ……………in a cafe when I (see) ………………… him 11 12 CHIA He bought a Vietnamese-English dictionary and (give)… … it to me The coffee was all right,but the cream (be)………………… sour He has a piano

Ngày tải lên: 26/08/2016, 22:42

... apologized for starting without me but said that she always (lunch) at 12 .30 11 He always (wear) a raincoat and (carry) an umbrella when he walked to the office 12 What you (think) of his last ... to what you say He always (think) about something else 42 This book is about a man who (desert) his family and (go) to live on a Pacific island 43 You (understand) what the lecturer is saying? ... từ tobe : (+) S + am/ is/are + O (-) S + am/ is/are + not + O (?) Am/ is/are + S + O? Hiện tiếp diễn (+) S + am/ is/are + V_ing (-) S + am/ is/are + not + Ving (?) Am/ Is/Are + S + V_ing? 3.Thì khứ đơn:

Ngày tải lên: 14/01/2017, 11:20

... not a gum wrapper! 27 I am given a library name It is EASY READER HAYWARD I am called EASY READER because I am easy to read HAYWARD is my author’s last name 28 I ride to my row on a cart 29 That ... Cataloging-in-Publication Data Hayward, Linda I am a book / Linda Hayward ; illustrations by Carol Nicklaus p cm.—(Silly Millies) Summary: Describes how a book is created, manufactured, and distributed ... Nicklaus, Carol, ill II Title III Series Z 116 .A2 H38 2006 002—dc 21 2002 014 846 Manufactured in the United States of America — DP — 11 10 09 08 07 06 I Am a Book I am a book I was made to be read But

Ngày tải lên: 21/04/2017, 14:22

... shall believe am having 10 will have 11 will be 12 is coming 13 is catching 14 are you meeting, am meeting 15 are you riding/will you ride 16 will Mrs Pitt say, won't mind 17 will it matter 18 won't ... watching, turned, went stood was playing, insisted was walking 10 was having, lunched 11 wore, carried 12 did you think, liked 13 shared, was always complaining/always complained 14 realized, was ... wearing 12 is reading 13 am redecorating 14 is boiling 15 are you enjoying, am enjoying, want 16 you get, go, am going 17 are you putting, am going, are you coming, you mind 18 you owe, I owe, you intend

Ngày tải lên: 30/10/2017, 18:10

... like) watching cartoons *Give the correct form of the verb in brackets John is twenty six years old He (1. live _) with his family in an apartment in Hanoi There (2.be ) four people in his family ... His father is a worker His mother is a worker They (3 work ) in a factory His sister is a student at university John (4 work ) as a travel writer for a newspaper He (5 go ) abroad about ten times ... everyday 14 Bad students never (work) hard 15 It often (rain) in summer It (rain) now 16 He (not have) any car 17 What you often (do) in the morning? 18 She and I (like) (watching) TV very much 19

Ngày tải lên: 26/11/2017, 14:11

... GIẢ DÀNH CHO KHÁN GIẢ B? ?i : Một hôm nhà vua g? ?i bác nông dân đến n? ?i :Ngày mai ta nghó ba chữ số a, b,c Ta cho phép nhà n? ?i ba số x,y,z, ta n? ?i tổng ax+by+cz Nhà ph? ?i đoán ba chữ số a, b,c ta ... Sñ Sx c) =1 Sñ Sx d) = Sđ  HOAN HÔ EM ĐÃ TRẢ L? ?I ĐÚNG! Sx + + 15 Gi? ?i : Ta có Sđ = + + 11 = 21 = SAI R? ?I , CỐ GẮNG LÊN  EM ĐÃ TRẢ L? ?I ĐÚNG SAI R? ?I VƯT CHƯỚNG NG? ?I VƯT CHƯỚNG VẬT NG? ?I VẬT DÀNH ... ta chém đầu Bác nông dân đ S Th? ?a bệ hạ : ba số mà thần đ? ?a : x= 10 0; y =10 ; z =1 Gi? ?i thích : v? ?i x = 10 0, y = 10 , z =1 : abc V? ?I BA SỐ X , Y , Z NHƯ EM N? ?I THÌ BÁC NÔNG DÂN BỊ CHÉM ? ?A LÀ CÁI

Ngày tải lên: 15/03/2018, 00:45

... it easy to ride a bike I am always busy doing my housework 11 10 Walking in the rain gives my brother pleasure 11 Reading books brings us a lot of useful information 12 It takes Lan thirty minutes ... bike It is interesting to walk in the rain Mary found it easy to ride a bike I am always busy doing my housework 10 Walking in the rain gives my brother pleasure 11 Reading books brings us a ... souvenirs for the children last year The Lan family were sleeping when the mailman came Is it difficult living without any money? Does Nam have difficulty to find a job? Chatting with friends are a

Ngày tải lên: 29/05/2018, 13:31

... cartoons John is twenty six years old He (1. live _ ) with his family in an apartment in Hanoi There (2.be ) four people in his family His father is a worker His mother is a worker They ... winter 31 Ba always ( drink ) cold water when he is thirsty 32 Lan and Mai ( skip ) at present 33 My grandfather ( have ) a new car 31 Look! The plane is flying towards the airport It (land) ... breakfast at 6.30 every morning She can (speak) English 1. Oh, no! It (rain) We can’t play tennis It always (rain) a lot in April 2.What your son (have) breakfast usually? -He usually (eat) a

Ngày tải lên: 07/08/2018, 21:23

... Phil Collinson This book is a work of fiction Names, characters, places and incidents are either a product of the author’s imagination or used fictitiously Any resemblance to actual people living ... and Rose must use all their courage and cunning against an alien enemy – and a not-quite-alien accomplice – who are intent on destroying humanity Featuring the Doctor and Rose as played by David ... she walked idly towards the TARDIS A few pages in she stopped dead She felt her heart miss a beat The headline ran ROMAN REMAINS AT CREDITON VALE Beneath it was a colour picture of a middle-aged

Ngày tải lên: 13/12/2018, 14:02