A a=2，b=-2，c=8/3 B a=-2，b=2，c=8/3 C a=2，b=2，c=-8/3 D a=2，b=2，c=8/3

A I1<I2<I3 B I2<I3<I1 C I3<I2<I1 D I1<I3<I2

A u B uv C 0 D 1

A <img width="200" height="31" src="https://www.beizhujiaoyu.com/uploads/202208/20211031002147_3992.jpg" title="" align="" alt="" /> B <img width="200" height="27" src="https://www.beizhujiaoyu.com/uploads/202208/20211031002149_3367.jpg" title="" align="" alt="" /> C <img width="280" height="35" src="https://www.beizhujiaoyu.com/uploads/202208/20211031002149_5086.jpg" title="" align="" alt="" /> D <img width="300" height="34" src="https://www.beizhujiaoyu.com/uploads/202208/20211031002151_4148.jpg" title="" align="" alt="" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/164983090855671.jpg" alt="" width="100" height="41" title="" align="" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/164983092522841.jpg" alt="" width="120" height="40" title="" align="" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/164983094579471.jpg" alt="" width="100" height="41" title="" align="" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/16498309633931.jpg" alt="" width="100" height="40" title="" align="" />

A (II)的解必是(I)的解，(I)的解也是(II)的解 B (I)的解必是(II)的解，但是(II)的解不是(I)的解 C (II)的解必是(I)的解，但是(I)的解不是(II)的解 D (I)的解不是(I)的解，(II)的解也不是(I)的解

A <img width="50" height="28" src="https://www.beizhujiaoyu.com/uploads/202208/20220207203021_3039.jpg" title="" align="" alt="" /> B <img width="50" height="28" src="https://www.beizhujiaoyu.com/uploads/202208/20220207203021_7883.jpg" title="" align="" alt="" /> C <img width="50" height="28" src="https://www.beizhujiaoyu.com/uploads/202208/20220207203023_3987.jpg" title="" align="" alt="" /> D <img width="50" height="28" src="https://www.beizhujiaoyu.com/uploads/202208/20220207203023_8508.jpg" title="" align="" alt="" />

A 1.1 B 2.2 C 2 D 4

A 1/3 B 1/6 C 1/9 D 1/81