28. In the second paragraph, the author implies that using radio transmitters would allow a researcher who studies crow to (A) identify individual c....托福考试题
More recently, professional archaeologists have taken over. These researchers have sought to demonstrate that their work can be a valuable too....托福考试题
33. What does the passage mainly discuss? (A) The increased use of private mail services (B) The development of a government postal system (C)....托福考试题
6. In his research at Columbia University, Charles Townes worked with all of the following EXCEPT (A) stimulated emission (B) microwaves (C) l....托福考试题
91. If you could ask a famous person one question, what would you ask? Why? Use specific reasons and details to support your answer. 92. Some people....托福考试题
1. People attend college or university for many different reasons (for example, new experiences, career preparation, increased knowledge). Why do you....托福考试题
Task1:describe an activity you tried and enjoyed recently. Explain why it was enjoyable to you. Include reasons ans example to support your respon....托福考试题