【简答题】Although most people once thought that it was impossible, several climbers have now scaled the north face of the Eigar in winter.=> Although most people thought it ____ impossible, several climbers ha...
【简答题】完形填空。 In the last 500 years, several million people have been killed by earthquakes. Among all the earthquakes, the 1976 Tangshan Earthquake is regarded as the 1 one in the twentieth century. On July ...