A.11,8 gam.
B.50,2 gam.
C.89,4 gam.
D.49,4 gam.

A.Fe3O4.
B.Fe2O3.
C.Fe(OH)3.
D.Fe(NO3)3.

A.2,7.
B.5,4.
C.8,1.
D.10,8.

A.1
B.2
C.3
D.4

A.Cu.
B.Ag.
C.Fe.
D.

A.Cu.
B.Ag.
C.Al.
D.Au.

A.coffee
B.beer
C.tea
D.wine

A.\(P = a{b^2}\)
B.\(P = {a^2}{b^2}\)
C.\(P = {a^2}b\)
D.\(P = ab\)

A.\(M\left( { - 1;0} \right)\)
B.\(M\left( {0; - 1} \right)\)
C.\(M\left( {0;1} \right)\)
D.\(M\left( {1;0} \right)\)

A.As long as you are in my situation, you will understand my feeling.
B.If only you were in my situation and you understand my feeling.
C.I wish you were in my situation and could understand my feeling.
D.You are not in my situation. Otherwise, you could have understood my feeling.