A:h =H,v =
B:h =H,v =
C:h =H,v =
D:h =H,v =
在直角坐标系xOy中,曲线C1:x=tcosαy=tsinα(t为参数,且t≠0),其中0≤α<π,在以O为极点x轴正半轴为极轴的极坐标系中,曲线C2::ρ=2sinθ,C3:ρ=23cosθ,求解下列问题: