单项选择题
A．a bright, white light that is reflected B．little tiny trees that are growing C．vegetable gardens that are planted D．a light, pinkish view from space
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．ordinary people like the television programme B．ordinary people are interested in pictures of paintings, jewellery, etc. C．the policemen can not catch the thieves themselves D．ordinary people may help the policemen get useful information about the criminals