Kết quả tìm kiếm

I.COMPLETE THE PASSAGE WITH THE APPROPRIATE WORDS FROM THE BOX: forced , impossible , own , emigrated , admission determined , physician, finally , education , medical Elizabeth Blackwell was born in England in 1821 and (1) to New York City when she was ten years old .One day she decided...

2.Nguyên tử có 2 đồng vị .Đồng vị thứ nhất có 18 notron ,đồng vị 2 nhiều hơn đồng vị 1 là 2 notron .Tỉ lệ số nguyên tử của 2 đồng vị là 3:1 .Tính NTKTB của A

1.Phân mức năng lượng cao nhất của 2 nguyên tố lần lượt là 3d^{x} và 3p^{y} .Cho biết x+y=10. Hạt nhân nguyên tử Y có số proton bằng số nơtron .Viết cấu hình e của nguyên tử X,Y và xác định X,Y

Bài giải của bạn bị sai ,bạn trên giải đúng rồi bạn có thể tham khảo lại .

1.Một xe chuyển động với tốc độ 72km/h thì hãm phanh chuyển động thẳng chậm dần đều .trong giây cuối cùng trước khi xe dừng lại , xe đi được quãng đường 2m.Tính gia tốc của xe

1.Cho 0,78 g một kim loại thuộc nhóm A vào dung dịch HCl thu được 0,224 lít khí (đktc).Định tên kim loại đó.

2.So sánh bán kính của: a.P,S,O,F b.Si,Na,N,O

1. Khi cho 3,33 gam một kim loại tác dụng với nước thì thấy khối lượng dung dịch sau phản ứng tăng 2,8536 gam.Tìm tên kim loại.

I.SPEAKING: A:(1).. .... in your exam ! B:(2) ..... I hope we both pass. A:Did you study all last night ? B:(3) ..... I watched TV and went to bed .(5)..... A:I did the same .(4) ..... ,after the exam . B:All right .(6)..... for a drink. a.How are you , b.Have to good , c.Good luck , d.What...

II.GRAMMAR AND STRUCTURE: A .Choose : You should not spend all your time ...... a. study , b.to study , c. studying , d. studied Would you like ... somewhere for a rest ? a.going , b. to go , c. go , d. to be gone I did not like it in the city at first .But now ..... here . a. I got used to...

I.VOCABULARY AND EXPRESSION: Do not worry .... me.I ll be fine. a.to , b.about , c.with , d.for The main post office is not far ... the library. a.to , b.away , c.with , d.from Phong is interested ... learning English. a.in , b.at , c.on , d.of They are all so pretty-I do not know ... once to...

y=\left | 2x-3 \right | y=5-\left | 4-3x \right | y=\left\{\begin{matrix} 4x-1 &,x\geq 1\\ 3 & ,x< 1 \end{matrix}\right. y=\left | x+2 \right |-\left | 2-x \right |

V.WRITE THE SECOND SENTENCE SO THAT IT HAS A SIMILAR MEANING TO THE FIRST: My father said I could use his car->My father allowed...... Do not stop him doing what he wants.->Let.......... You can try to get Jim to lend you his car ,but you won not succeed->There is no point ........ Why do not...

IV:CHOOSE THE CORRECT OPTION A,B,C OR D TO COMPLETE EACH SPACE: Kevin teaches (1) at a high school .He enjoys his teaching very much ,and he always feels very (2) and proud when he is standing on the teaching (3) .Some of his ex-classmates have just offered him a chance (4) them in a new company...

III.COMPLETE THIS TEXT WITH THE CORRECT FORM OS THE VERB: Being a student involves (take) responsibility for (organize) your own time.Therefore, you need (learn) about planning your time and workload effectively.You can learn (do) this through practice and through stopping (think) about what...

II.WRITE SENTENCES ABOUT YOURSELF .SAY WHETHER YOU LIKE OS DO NOT LIKE THESE ACTIVITIES .CHOOSE ONE OF THESE VERBS FOR EACH SENTENCE:(do not ) like,love,enjoy,hate,do not mind ,be fond of,be interested in,detest,can not stand/can not bear ,prefer. (fly) :I like flying (play football)...

I.COMPLETE THE SENTENCES WITH THE CORRECT FORM OF THE WORDS IN THE BOX: entertain , maths , nation , relax , safe profession , enjoy , employ , attend , crowd The police gave him protection for his own ......... How many times do I have to ask you to pay ....... The company made hundreds of...

2.WRITING: 1.Seeing that he was go angry ,she left the office. a.She did not want to make him angry, so she left b.She left the office when she saw how angry he was. c.He grew very angry when he saw her leaving the office. 2.They arrived too late to get good seats. a.Althought they were late...

2.READING COMPREHENSION: David Evans is a farmer.He does farming on his own land in Wales.The farm has (1) to his family for generations.The soil is poor .David(2) sheep on his land.He does not employ (3) fulltime workers.His sons help him when they are not (4) school.His wife adds to the...

Do you get much exercise