单项选择题
A. Please wait here B. Show C. Here it is D. your license E. beg your pardon F. May I see G. I’m sorry H. Be careful
A．no other country can make one like it B．it is much cheaper to operate C．it is more sophisticated than Landsat 7 D．Terra will show energy gains
A．birds are important in our lives B．animals are important in our lives C．nature is important in our lives D．Audubon was especially interested in birds