Cho log 12 27 = a . Tính T = log 36 24  theo a.

A. T = 9 − a 6 − 2 a

B.  T = 9 − a 6 + 2 a

C.  T = 9 + a 6 + 2 a

D.  T = 9 + a 6 − 2 a

Choose the word whose underlined part has a different pronunciation from the others in each group

A. now

B. how

C. know

D. down