爱尔眼科医院是正规吗:where is 九泉发射中心? which province?

where is 九泉发射中心? which province? WHERE IS? 请问九泉卫星发射中心显示版两侧的标语：一丝不苟 分秒不差 的“一”和“分”为什么没显示啊？ 为什么西昌发射同步卫星要比九泉节省能耗 Where is Washington? where is china where is San Francisco? where is San Francisco? where is heber? boa is where