A.(Iy)a=(Iy)b,(Iz)a<(Iz)b B.(Iy)a=(Iy)b

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问题 A.(Iy)a=(Iy)b,(Iz)a<(Iz)bB.(Iy)a=(Iy)b,(Iz)a>(Iz)bC.(Iy)a>(Iy)b,(Iz)a=(Iz)bD.(Iy)a<(Iy)b,(Iz)a=(Iz)b

选项 A.(Iy)a=(Iy)b,(Iz)a<(Iz)b
B.(Iy)a=(Iy)b,(Iz)a>(Iz)b
C.(Iy)a>(Iy)b,(Iz)a=(Iz)b
D.(Iy)a<(Iy)b,(Iz)a=(Iz)b

答案 B

解析
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