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nếu n 5k thì có n chia hết cho 5 do đó a chia hết cho 5

THIẾT KẾ, CHẾ TẠO VÀ ĐIỀU KHIỂN MÁY TẠO ĐỘ ẨM BẢO QUẢN RAU, CỦ QUẢ

THIẾT KẾ, CHẾ TẠO VÀ ĐIỀU KHIỂN MÁY TẠO ĐỘ ẨM BẢO QUẢN RAU, CỦ QUẢ

Cơ khí - Vật liệu

... chua gi rau qu c lõu di dng thnh phm khỏc Sau khoa hc cụng ngh phỏt trin thi nhng cỏch bo qun truyn thng tr n dng nh khụng ỏp ng c nhng nhu cu ngy cng cao ca ngi Vi th, ngi ta a ỏp dng nhng bin ... sinh hc ca tng loi rau qu khỏc Khoa hc k thut phỏt trin dn n cụng ngh bo qun rau, c, qu ngy cng a dng v phong phỳ, thi gian bo qun cng c tng l n Nhiu nm gn õy, cỏc nh khoa hc a bt tay nghi n ... v n Nụng sn n i chung v rau qu n i riờng l mt thnh phn quan trng h thng thc phm ca ngi Do ú, vic tim cỏch n ng cao sn lng, nng sut l mt yờu cu vụ cung cp thit Th nhng nu ch trung vo vic gia tng...
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ĐỀ THI HỌC SINH GIỎI TOÁN LỚP 5( ĐỘ).....doc

ĐỀ THI HỌC SINH GIỎI TOÁN LỚP 5( ĐỘ).....doc

Tư liệu khác

... công việc 10 Trong lượng công việc bác Hùng làm lượng công việc bác làm N u bác Dũng làm để xong công việc thời gian thời gian bác Mạnh làm để xong công việc Tính thời gian bác làm để xong công ... việc Bài cho hình thang ABCD ; I chung điểm AD ; IC cắt BD O ; AC cắt BD H AB = 5cm, DC= 10cm a) So sánh di n tích AIC di n tích ACD b) Tìm tỉ số OI OC c) Biết SAIOH = cm2 Tính SABCD A B I D C ... lại ban giám khảo xét thêm 18 em chuy n từ giải ba l n giải nhì Khi số em đạt giải ba số em đạt giải nhì Tính số học sinh đạt giải loại ( ch a xét thêm) Bài Ba bác thợ: Hùng, Dũng, Mạnh làm xong...
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ĐỀ THI HỌC SINH GIỎI MONTOÁN LỚP 5( ĐỘ).doc

ĐỀ THI HỌC SINH GIỎI MONTOÁN LỚP 5( ĐỘ).doc

Tư liệu khác

... (4đ) Mai, Lan Bình số Mai dùng hết 18 quy n, Lan dùng hết 17 Như số lại Mai Lan số Bình Hỏi b n vở? Bài (6đ) Cho hình thang ABCD ; I trung điểm AD ; IC cắt BD O ; AC cắt BD H AB = 5cm, ... nhiều gấp l n số em đạt giải Sau tính to n lại ban giám khảo xét thêm 18 em chuy n từ giải ba l n giải nhì Khi số em đạt giải ba số em đạt giải nhì Tính số học sinh đạt giải loại ( ch a xét thêm) ... Ph n II Tự lu n (17đ) Bài Tính nhanh: (2 đ) 1,8 × 246 + 0,9 × 9134 × + ×10619 × 0,6 + 1,8 18 Bài ( 5 ) Trong kỳ thi HSG huy n v a qua, số em đạt giải số em đạt giải nhì Số em đạt giải ba nhiều...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 17 potx

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 17 potx

Chứng chỉ A, B, C

... very long test 15 (C) a long test 16 (D) such a long test 17 18 17 After years of war the whole nation wanted to make with their enemies A 19 (A) peace 20 (B) pace 21 (C) pact 22 (D) pair 23 ... Only a little 22 (B) Only few (C) Only a few (D) Not much 10 I can't find D (A) myself the hat (B) me the hat (C) the my hat (D) my hat 11 Janet and I live quite near each other B (A) ... that, please? A 19 (A) spell 20 (B) spelling 21 (C) spells 22 (D) spellings 14 The headmaster several announcements C (A) did (B) spoke (C) made (D) said 15 - Have you read his new book?...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 18 potx

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 18 potx

Chứng chỉ A, B, C

... table tennis at all D (A) has (B) hasn't (C) don't (D) doesn't 6 Stop such a terrible noise, please! C (A) to make (B) make (C) making 10 11 (D) made This man has dark D 12 (A) heads ... harder A (A) work (B) to work (C) worked (D) zero 15 When he got home, he the radio A (A) turned on (B) was turning on 10 (C) had turned on 11 (D) had been turning on 12 16 She for a ... for a neighbour to look after the house while she was away A 13 (A) arranged 14 (B) organised 15 (C) designed 16 (D) administered 17 17 The man the boy to swim D 18 (A) learnt 19 (B)...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 19 ppt

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 19 ppt

Chứng chỉ A, B, C

... (A) in 12 (B) on 13 (C) into 14 (D) with 15 I was C 16 (A) yesterday at home all day 17 (B) yesterday all day at home 18 (C) at home all day yesterday 19 (D) all day at home yesterday 20 ... yesterday 20 since I came back to the office? D 21 (A) Did Robinson telephone 22 (B) Was Robinson telephoning (C) Telephoned Robinson (D) Has Robinson telephoned 10 - Are you going to visit him? ... (A) make (B) are having (C) get (D) are getting Were you at school yesterday? Yes, C (A) there we were (B) were we (C) we were (D) I were 10 I went hospital for an operation C 11 (A) ...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 20 doc

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 20 doc

Chứng chỉ A, B, C

... (B) another 13 (C) other 14 (D) oneself 15 12 That in 19 45 B 16 (A) was happened 17 (B) happened 18 (C) did happened 19 (D) had happened 20 13 the corner, a brick fell on his head B ... B 21 (A) Turning 22 (B) When he turned 23 (C) Having turned (D) Turn 14 If you don't want this ball point pen, take There were some left in the box C (A) the other (B) others (C) another ... Dusit likes watching TV does Dara A 19 (A) So 20 (B) Either 21 (C) Nether 22 (D) Too 23 18 Vasco da Gama the sea rout to India B (A) discover (B) discovered (C) invent (D) invented 19 Before...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 21 pot

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 21 pot

Chứng chỉ A, B, C

... at all! D 22 (A) choose 23 (B) chose (C) chosen (D) choice 10 - Do you think we're all created equal? - No, not all C (A) in (B) over (C) at (D) to 11 Your explanation reasonable ... (A) my (B) mine (C) mine's (D) my's Our neighbour's sons come here very often C (A) doesn't (B) isn't (C) don't (D) aren't 10 Look! Now they TV again! A 11 (A) are watching 12 (B) watch ... (C) wasn't she 17 (D) wasn't it 18 13 Jupiter spins faster than planets B 19 (A) any 20 (B) any other 21 (C) any others 22 (D) any other's 23 14 - I thought you bought a new pen yesterday -...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 22 docx

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 22 docx

Chứng chỉ A, B, C

... off ten minutes ago A (A) took (B) has taken (C) had taken (D) was taken 19 I can't help you, and he can't help you D (A) neither (B) too (C) also (D) either 10 20 Your friends won't be ... you don't make a loud noise D 11 (A) otherwise 12 (B) until 13 (C) unless 14 (D) so long as 15 12 The final of the play will take place on Saturday B 16 (A) action 17 (B) performance 18 ... Famine occurs when all the people in an area have hardly food D 21 (A) not 22 (B) no 23 (C) ever (D) any 14 The disease widely, all over the country C (A) sprang (B) sped (C) spread...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 23 doc

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 23 doc

Chứng chỉ A, B, C

... goods, and these are often called trade fairs A (A) Most of (B) A great many 10 (C) A great deal of 11 (D) Many of 12 16 Is there any interesting in the paper? B 13 (A) new 14 (B) news 15 (C) ... Has 14 - Let's go to the new movie down town - Thanks, but I it already A (A) have seen (B) was seeing (C) had seen (D) had see 15 exhibitions are like huge market places for the sale ... pieces of news 16 (D) piece of news 17 17 a flat with someone is cheaper than living in your own B 18 (A) Deviding 19 (B) Sharing 20 (C) Cutting 21 (D) Parting 22 18 Mr Brown is the landlord...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 24 pdf

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 24 pdf

Chứng chỉ A, B, C

... work as soon as possible B 10 (A) started 11 (B) start 12 (C) to start 13 (D) to start to 14 12 This man has a A 15 (A) beard 16 (B) barber 17 (C) moustaches 18 (D) facehair 19 13 You arrive ... Does he watch 15 Laura got a new stereo for Christmas D (A) young (B) kind 10 (C) feel 11 (D) brand 12 16 usually have boiled rice for breakfast? C 13 (A) Are you 14 (B) Have you 15 ... arrive at a party at p.m What you say? = C 20 (A) Goodnight 21 (B) Good-bye 22 (C) Good evening (D) Good afternoon 14 TV last night? A (A) Did he watch (B) Watched he (C) Did he watched...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 25 ppt

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 25 ppt

Chứng chỉ A, B, C

... motorcar has had an enormous effect in North America C (A) in daily life (B) in daily lives (C) on daily life (D) to daily life 11 I don't think we are on the right road We some one A (A) ... 1 (A) on (B) in (C) to (D) at - A: Have you got a lighter? - B: A (A) Yes, I have (B) Yes, I have got (C) That's all right (D) Yes, I has 10 Does Lisa computers? A 11 (A) like ... had better ask 10 (B) should better ask 11 (C) had better asked 12 (D) have better ask 13 12 - Is this parttern important? - It's to study well D 14 (A) that important 15 (B) very important...
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Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 26 pot

Tài liệu Đề thi và đáp án tiếng anh trình độ A - Đề 26 pot

Chứng chỉ A, B, C

... has a experience of marketing in Europe B (A) grand (B) wide (C) large (D) great 11 Have you read paper? B 10 (A) today 11 (B) today's 12 (C) of today 13 (D) in today 14 15 12 - David ... has lived in Peru for ten years - Yes, but he doesn't understand Spanish C 16 (A) already 17 (B) yet 18 (C) still 19 (D) anymore 20 21 13 - I'll come home to give you the package at nine ... 1 - What does Julia do? - She's nurse in a big hospital C (A) one (B) - (C) a (D) an 6 Give it to It's my pencil B (A) I (B) me (C) my 10 11 (D) mine I don't think he flowers...
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Đề thi và đáp án tiếng anh trình độ A - Đề 27 pot

Đề thi và đáp án tiếng anh trình độ A - Đề 27 pot

Chứng chỉ A, B, C

... In China an ancient medical treatment as acupuncture is sometimes used during surgery C 10 (A) to know 11 (B) knowing 12 (C) known 13 (D) knows 14 12 - Do you have any pets? - Yes, I have ... may be as as six guests to dinner B (A) much (B) many (C) many more (D) very many 19 I have wheel in the back of my car D (A) other (B) others (C) the other (D) another 10 20 It's an ... kittens A 15 (A) two small black 16 (B) small two black 17 (C) two black small 18 (D) black small two 19 13 - What did you want to talk about, Bill? - I'm considering home B 20 (A) go 21...
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Đề thi và đáp án tiếng anh trình độ A - Đề 28 docx

Đề thi và đáp án tiếng anh trình độ A - Đề 28 docx

Chứng chỉ A, B, C

... Thonburi May 17 A 18 (A) on 19 (B) at 20 (C) in 21 (D) zero 22 18 The picture was in the museum A (A) (B) hang (C) hanged (D) hanging 19 study hard before an examination C (A) ... their invitation D 10 (A) accept 11 (B) accepting 12 (C) accepted 13 (D) to accept 14 15 12 I had my younger brother the newspaper to me while I was abroad C 16 (A) to send 17 (B) sent 18 ... students go to the Seven Dials School in Brighton D 22 (A) They (B) You (C) She (D) We 10 If students want a certificate have to pass the final examination B (A) she (B) they (C) you (D) their...
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Đề thi và đáp án tiếng anh trình độ A - Đề 29 pptx

Đề thi và đáp án tiếng anh trình độ A - Đề 29 pptx

Chứng chỉ A, B, C

... (D) not 14 - What are you doing? - D (A) No (B) None (C) Not (D) Nothing 15 His bank manager decided to give him financial for his new shop A (A) backing (B) pushing (C) standing 10 ... 1 (A) the week (B) a week (C) all weeks (D) in the week - Have you been to Osaka? - B (A) Until now not (B) Not yet (C) Still not (D) Yet not 10 Don't ask me for information: I haven't ... to students B 21 (A) don't lend 22 (B) doesn't lend (C) lending (D) haven't lent 10 is your name? B (A) which (B) what (C) whose (D) why 11 Perhaps he is B (A) work 10 (B) at work 11...
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Đề thi và đáp án tiếng anh trình độ A - Đề 30 ppt

Đề thi và đáp án tiếng anh trình độ A - Đề 30 ppt

Chứng chỉ A, B, C

... believing (D) has believed 15 The aeroplane down at Cairo on its way to India D (A) remained (B) stayed 10 (C) landed 11 (D) touched 12 16 My uncle went out of the house ago C 13 (A) an ... The window was shut, and he to open it D 10 (A) did even not try 11 (B) tried not even 12 (C) even didn't try 13 (D) didn't even try 14 12 There no rain here since last month B 15 (A) ... a river Can you ? C (A) swimming (B) to swimming (C) swim (D) to swim 6 There is nothing very to in that small town B (A) enjoy (B) enjoyable (C) enjoyed 10 (D) enjoying 11 Don't leave...
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Đề thi và đáp án tiếng anh trình độ A - Đề 31 pdf

Đề thi và đáp án tiếng anh trình độ A - Đề 31 pdf

Chứng chỉ A, B, C

... of the school play will be on Monday at 5. 30pm C (A) drama (B) exposition (C) performance 10 11 (D) exhibition 16 Mr Johns has painting since he retired A 12 (A) taken up 13 (B) taken of 14 ... 1 (A) to speak (B) speak (C) speak by (D) speak to This morning, I in cold water B (A) washed me (B) had a wash (C) made a wash (D) did my wash 10 What ? B 11 (A) are you 12 (B) are ... yesterday D 22 (A) is made (B) is being made (C) had made (D) was made 19 When students are sixteen, they can school if they wish C (A) escape (B) go out of (C) leave (D) put away 20 Have you...
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Đề thi và đáp án tiếng anh trình độ A - Đề 32 ppt

Đề thi và đáp án tiếng anh trình độ A - Đề 32 ppt

Chứng chỉ A, B, C

... C (A) refused (B) refusing (C) denied (D) denying 10 20 Maria hasn't visited her home in Spain A 11 (A) for many years 12 (B) since many years 13 (C) many years since 14 (D) many years ago ... badly at Mary's birthday party B (A) conducted (B) behaved 10 (C) showed 11 (D) looked 12 16 It everyday so far this week A 13 (A) has rained 14 (B) is raining 15 (C) rained 16 (D) rains ... penfriend from Australia C (A) Kate (B) Kate is (C) Kate's (D) Kates 11 The judge the criminal to twenty years in prison C 10 (A) condemned 11 (B) punished 12 (C) sentenced 13 (D) inflicted...
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Đề thi và đáp án tiếng anh trình độ A - Đề 33 potx

Đề thi và đáp án tiếng anh trình độ A - Đề 33 potx

Chứng chỉ A, B, C

... holding 13 (C) having 14 (D) getting 15 While he to London he saw an accident A 16 (A) was driving 17 (B) drives 18 (C) drove 19 (D) had driven 20 Madame Traiviey has lived nearly 1 15 years ... near (C) under (D) to 11 Anyone who his work cannot go C (A) finished not 10 (B) not finish 11 (C) has not finished 12 (D) will not finish 13 12 Our flat is very small We wish we another ... C 21 (A) She was very old 22 (B) She is very old 1 (C) She died when she was nearly 1 15 (D) Madame Traiviey has many more years 10 Crusoe is looking at a ship his telescope A (A) through...
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