The Spirit rover went for its longest trip on the surface of

The Spirit rover went for its longest trip on the surface of The Spirit rover 背景是什么? 三、完形填空（10分）The parents of two boys went on a trip for the we __from the moon,the earth with water___70%of its surface. （）of its surface of the earth is sea. on the surface是什么意思 on the front of its the water lilies floated on the surface of the lake On the --(one )day of our trip ,we went to the eiffel tower. the spirit of sports The war went on for years,____a lot of people. The war went on for years,( ) millions of people