Câu 22: B
Câu 23: A
Câu 21: C
Câu 20: D
Câu 19: A
Cau 18: C
Câu 17: C
Câu 16: D
\(\text{11.B.BC=HK}\)
\(\text{12.D.x'Oy'}\)
\(\text{13.A.}\dfrac{4}{3}\)
\(\text{14.B.}3^5\)
\(\text{15.C.-|-5|=5}\)
\(\text{16.D.16}\)
\(\text{17.C.7,6}\)
\(\text{18.C.(1;2)}\)
\(\text{19.A.5}\)
\(\text{20.D.96}\)
\(\text{21.C.Bằng nhau}\)
\(\text{22.B.a//b}\)
\(\text{23.A.4}\)