Đề thi thử ĐH, CĐ tháng 2 năm 2011

... nghim : x2 x2 + m = Bi 2: Xác định m để phơng trình sau có nghiệm: m + x x + = x + + x x Bi 3:Tìm m để bất phơng trình x(4 x) + m( x x + + 2) nghiệm với x thuộc đoạn 2, + Bi ... định toạ độ ba đỉnh A, B, C Bi 8: Trong không gian với hệ toạ độ Đềcác Oxyz, cho A(1; 2; 2) , B(-1; 2; -1), C(1; 6; -1), D(-1; 6; 2) a) Chứng minh ABCD hình tứ diện tính khoảng cách hai đờng thẳng ... phng trỡn...

Ngày tải lên: 28/04/2015, 20:00

... A 2, 24 B 3,36 C 1, 12 D 1,68 Cõu13/ Nu cho mol mi cht: CaOCl2, KMnO4, K2Cr2O7, MnO2 ln lt phn ng vi lng d dung dch HCl c, cht to lng khớ Cl2 nhiu nht l A KMnO4 B K2Cr2O7 C CaOCl2 D MnO2 Cõu ... in hoỏ l: Fe+Ni 2+ >Ni+Fe2+ Sut in ng chun ca pin in hoỏ l:(cho E0Fe2+/Fe= - 0,44 v, E0Ni2+/Ni= -0 ,23 v) A 0 ,21 v B 0,12v C 2, 1v D 1,2v Cõu 58 in phõn 100 ml dung dch CuSO4 0 ,2 M vi I = 9,65A...

Ngày tải lên: 01/12/2013, 12:11

Ngày tải lên: 18/04/2015, 23:00

... C 0, 12 D 0,018 23 5 U bị phân hạch lò phản ứng tỏa lượng trung bình 20 0 Câu 35 Một hạt nhân 92 235 MeV Nếu phân hạch kg 92 U (lấy NA = 6, 02. 1 023 mol-1) lượng tỏa A 9,81.1 026 MeV B 6, 02. 1 026 MeV ... 18,4% 23 5 Câu 39 Cho biết lượng liên kết riêng hạt nhân 92 U 7,6 MeV, khối lượng nơtron prôtôn 23 5 1,00867 u, 1,00 728 u; lấy 1u = 931,5 MeV/c2 Khối lượng hạt nhân 92 U A 23 5,...

Ngày tải lên: 10/07/2014, 12:01

... much caffeine Question 27 - "How's your class this term?" - "Great I have seventeen students, most of speak English very well." A whom B those C which D who Question 28 “Never say that again, ... not been Question 23 The harder you try, _ A the more you achieve B you achieve the more C the most you achieve D the better achieve you have Question 24 - “ Do you think you will be...

Ngày tải lên: 06/08/2014, 07:20

... Question 38 - “ Can I use your motorbike this evening?” - “ .” Trang 2/ 6 – M· ®Ò 357 A Of course, you can B It’s my pleasure C Do it if you can D Of course, you might Question 39 - “ More coffee?, ... produced in this way as early as 1 922 This system eventually brought us 'talking pictures' Question 51: According to the passage, films using sound effects were screened A a...

Ngày tải lên: 06/08/2014, 07:20

... their bellies However, this raises the problem that one eye was always looking down into the sand and was effectively useless – In evolution this problem was solved by Trang 2/ 6- M· ®Ò 485 the lower ... the manager D The manager wanted Mary to be typed the reports - THE END -Trang 6/ 6- M· ®Ò 485 - Trang 7/ 6- M· ®Ò 485 ... free D freed Question 34 - "How's your cla...

Ngày tải lên: 06/08/2014, 07:20

... - “ Can I use your motorbike this evening?” - “ .” Trang 3/6 – M· ®Ò 570 A Do it if you can B It’s my pleasure C Of course, you can D Of course, you might Question 42 - "How's your class this ... screened A before 1896 B in 1 927 C as early as 1896 D as early as 1 922 Question 54 Which of the following is not mentioned as a producer? Trang 4/6 – M· ®Ò 570 A a gramopho...

Ngày tải lên: 06/08/2014, 07:20

... Question 21 : Question 22 Question 23 Question 24 Question 25 Question 26 Question 27 A taken off A healthcare A relatives A Managed A on A entertainment A volunteer Question 28 A patients Question 29 ... from 21 to 30 Trang2/6 – M· ®Ò 628 The United Nations Children's Fund, or UNICEF, was (21 ) by the United Nations General Assembly on December 11, 1946, to provide emergency Fo...

Ngày tải lên: 06/08/2014, 07:20

... 22 - “ You have a good voice! You sang so beautifully!” - “ ” A Your compliment isn’t corrects B Your compliment is encouraging C Don’t joke me D Better than you are thinking Question 23 ... emphasize developing community-level services to promote the health and Trang 4/ 6- M· ®Ò thi 1 32 well-being of children Recently, UNICEF has begun partnerships with world-class athletes...

Ngày tải lên: 06/08/2014, 09:22