【单选题】Read Text B of Unit 6 in sense groups, and then complete the following questions. What are the two major means by which institutions obtain external financing?
【单选题】Read the text B in Unit 2 and choose the best answer to each of the following questions. 1. Why does the daughter find it difficult to help her father stand up?
【简答题】The temperature of the Sun is over 5,000 degrees Fahrenheit at the suce, but it rises to perhaps more than 16 million degrees at the center. The Sun is so much hotter than the Earth that matter ca...