A：$P\left(Y\ge {\mu }_2\right)\ge P\left(Y\ge {\mu }_1\right)$

B：$P\left(X\le {\sigma }_2\right)\le P\left(X\le {\sigma }_1\right)$

C：对任意正数$t$，$p\left(X\le t\right)\ge p\left(Y\le t\right)$

D：对任意正数$t$,$P\left(X\ge t\right)\ge P\left(Y\ge t\right)$