下列计算正确的是 （    ）

A：${\text{log}}_{2}6-{\text{log}}_{2}3={\text{log}}_{2}3$

B：${\text{log}}_{2}6-{\text{log}}_{2}3=1$

C：${\text{log}}_{3}9=3$

D：${\text{log}}_3{\left(-4\right)}^2=2{\text{log}}_3\left(-4\right)$