【简答题】Opinions from other scientists might go like this: 'Why should they want to get in touch with us? They may want to observe us only and ______ (不干涉) the development of our civilization.'
【简答题】看图选择正确答案。 ( ) 1. A. Touch your head. B. Touch your hand. ( ) 2. A. Jump like a squirrel. B. Climb like a bear. ( ) 3. A. Clap your hands. B. Stamp your foot. ( ) 4. A. Close your book....