Các vành đai nào sau đây là áp thấp?         

A. Xích đạo, chí tuyến.        

B. Chí tuyến ôn đói.

C. Ôn đới, xích đạo.            

D. Cực, chí tuyên.

Tìm x biết: $\frac{0,5}{0,7}=\frac{-0,1}{5x}$; $\frac{x+3}{1,2}=\frac{4}{5}$

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. 

A. buffalo B. exactly C. tobacco D. continue
A. repair B. harrow C. arrive D. announce
A. general B. condition C. another D. together
A. mother B. mature C. sister D. tragic
A. correct B. final C. heavy D. normal
A. attractive B. average C. classical D. regular 
a. tobacco b. contented c. buffalo d. transplanting
a. passenger b. purchase c. district d. routine
a. technology b. comfortable c. activity d. experience
a. repair b. harrow c. arrive d. announce
a. interested b. serious c. wonderful d. immediate
a. Physics b. History c. Boils d. Chemistry
a. important b. profession c. Geography d. Literature
a. entertain b. communicate c. receive d. complain
a. children b. student c. professor d. teacher
a. opinion b. relax c. semester d.. nervous
a. background b. career c. secondary d. private
a. scientific b. atomic c. impossible d. professor 
a. obtain b. determine c. award d. harbour
a. ambitious b. difficulty c. brilliant d. mature
a. education b. difficulty c. champion d. institute