A.\(\dfrac{{Ab }}{{aB}} \times \dfrac{{ab}}{{ab}}\)
B.\(\dfrac{{Ab}}{{aB}} \times \dfrac{{ab}}{{aB}}\)
C.\(\dfrac{{AB}}{{Ab}} \times \dfrac{{aB}}{{ab}}\)
D.\(\dfrac{{ab}}{{ab}} \times \dfrac{{aB}}{{ab}}\)
Loga
Hóa Học lớp 12
