Level B lesson 30 doc

... four times Level < /b> B lesson 30 1. In the preparation of fibrous material for production uses, stiff woody fibers from plants …………. fibers from animal sources. B A. the most heat the B. need more ... enhanced by …………. shops and restaurants. B A. an ethnic B. its many ethnic C. its ethnicity D. ethnicity 6. …………. that increasing numbers of compact-disc players will be...

Ngày tải lên: 24/07/2014, 19:20

... of baseball in 1839. D A. who become a Union army general B. which became a Union army general B. have been conducted C. had been conducted D. being conducted 7. …………… billions and billions ... Cage became a leading figure in avant- garde music. B A. Such was B. Due to C. Because from D. That 2. The basic fiber-optics system is called a fiberscope, …………………. consists of two bundle...

Ngày tải lên: 24/07/2014, 19:20

... have absolutely no doubt ________ the innocence of the accused. A (A) about (B) over Level < /b> B lesson 2 Posted in January 14th, 2009 by admin in English Test Level < /b> B 1. The funeral will be ... simply blind ________ his own shortcomings. B (A) with (B) to (C) for (D) at 14. John was born ________ two intelligent people. B (A) to (B) of (C) with 6. The ne...

Ngày tải lên: 24/07/2014, 19:20

... (a + b) (a – b) 2 0. Tương tự: 3 22 2 3 b b c b bc c (2) , 3 22 2 3 c c a c ac a (3) Cộng vế theo vế của (1), (2) và (3) ta được: 3 3 3 2 2 2 2 2 2 3 a b c a b c a ab b b bc c c ... 2 2 2 ( 2 ) 2( ) A B C A B C A B C A B C (2) Thay (1) vào (2), ta được: 2 8 8 5 0 0 5 A AB B B hay B = (1) 0B C A . Chọn 1, 1AC thì (P) : 0xz 8 5 A B = . C...

Ngày tải lên: 30/03/2014, 18:20