Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
A. economic
B. technology
C. opposite
D. appropriate

Choose the word with the different vowel sound
A.cheer
B.feed
C.need
D.feet

Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
A.correspond
B.economic
C.tropical
D.government

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
A.width
B.bathroom
C.bathing
D.method

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in the following question.
A.secret
B.sugar
C.soon
D.singer

Choose the word with the different vowel sound
A.would
B.could
C.group
D.should

Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
A. packaged
B. followed
C. reserved
D. exploited

Choose the word whose underlined part is pronounced differently from that of the others.
A.statue
B.aspiration
C.situation
D.lecture

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
A.tea
B.leave
C.leather
D.lead

Một ống dây dài $ \ell =25cm $ có dòng điện $ I=0,5A $ chạy qua đặt trong không khí. Cảm ứng từ bên trong ống dây là $ 6,{{28.10}^{-3}}T $ . Số vòng dây được quấn trên ống dây là
A.2500 vòng.
B.10000 vòng.
C.5000 vòng.
D.1250 vòng.