【简答题】单词中只包含一个音节,如:catch,叫__________音节。
【简答题】当飞机以最大升阻比对应的飞行状态运动时,气动效率________。
【简答题】You have made an appointment with Prof. Wang, but failed to keep it. Write a letter to him. Your letter should include: 1)apologize for your failure to keep the appointment 2)explain your reason to yo...
【简答题】You are applying for admission to an English Course. Write a letter to introduce yourself, and you want to gain an application. You should write about 100 words on answer sheet 2. Do not sign your own...