【单选题】听力原文:Watching his mother drown and then clinging to an inner tube for two days were painful enough. And psychologists say Cuban boy Elian Gonzalez's anxiety is probably being worsened by the persisten...
【简答题】What do you know about the sea? You may have seen it. Some of us have swum or bathed in it. It looks beautiful on a fine sunny day and it can be very rough when there is a strong wind. What other thin...