Ⅰ.阅读理解
A
China successfully completed the country's second space docking that linked the unmanned spacecraft ShenzhouⅧ again with the prototype(原型)space lab TiangongI，according to the mission's control center.About half an hour before the redocking，ShenzhouⅧ had disengaged(摆脱)from TiangongⅠafter a 12day flight together.ShenzhouⅧ，launched on Nov.1 and docked with the target orbiter TiangongⅠ on Nov.3 in an orbit 343 km above earth，marking China's first space docking a success.TiangongⅠ has been in orbit since its launch on Sept.29.
