【简答题】Do you know what the White House is? Perhaps some of you do , while others don't. The White House is a house in Washington. The president( 总统 ) of the U.S.A. lives in it. It's really white. But do you...
【简答题】Look at the four stars (*) that indicate where the following sentence could be added to the passage:Although archaeologists do not know for sure how the acoustic features were used, they have some ide...