A <img src="https://www.beizhujiaoyu.com/uploads/202208/164065820674331.png" width="16" height="34" />  B <img src="https://www.beizhujiaoyu.com/uploads/202208/16406582102021.png" width="16" height="34" />  C <img src="https://www.beizhujiaoyu.com/uploads/202208/164065821564081.png" width="16" height="34" />  D <img src="https://www.beizhujiaoyu.com/uploads/202208/164065822028311.png" width="17" height="34" />  E <img src="https://www.beizhujiaoyu.com/uploads/202208/164065822419941.png" width="16" height="34" /> 

A <img src="https://www.beizhujiaoyu.com/uploads/202208/164065823363671.png" width="58" height="17" />  B <img src="https://www.beizhujiaoyu.com/uploads/202208/164065823739531.png" width="58" height="17" />  C 2：3 D 2：5 E 4：9

A 12种 B 15种 C 30种 D 45种 E 90种

A σ₁>σ₂>σ₃ B σ₁>σ₃>σ₂ C σ₂>σ₁>σ₃ D σ₂>σ₃>σ₁ E σ₃>σ₂>σ₁

A 3 B 6 C 24 D 96 E 648

A 80％ B 81％ C 82％ D 83％ E 85％

A 125吨 B 120吨 C 115吨 D 110吨 E 105吨

A 81 B 90 C 115 D 126 E 135

A <img src="https://www.beizhujiaoyu.com/uploads/202208/164065824996151.png" width="50" height="30" />  B 10+π C <img src="https://www.beizhujiaoyu.com/uploads/202208/164065825385031.png" width="51" height="30" />  D 20+π E 10π

A 3，5 B 5，3 C 4，4 D 2，6 E 6，2