【单选题】A) It uses the latest aviation technology.B) It flies faster than a commercial jet. C) It is a safer means of transportation. D) It is more environmentally friendly.(CET4)What might be the question to...
【简答题】Questions 5 to 7 are based on the news report you have just heard. 5. A) It took off and landed on a football field. B) It stayed in the air for about two hours. C) It proved to be of high commercial ...