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fromspace,ourfromspace,ourearth,withwatercovering70%ofitssurface,appearsasa“blueplanet.”[]A.SeenB.SeeingC.HavingseenD.Tosee

题目详情
____ from space,our
____ from space,our earth,with water covering 70% of its surface,appears as a “blue planet.” [     ]
A.Seen      
B.Seeing      
C.Having seen  
D.To see
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答案和解析
A