ICAO4看图说话经典图片入侵者战机From this picture I can e an aircraft of Air France is approaching for landing. It’s Boeing 747. The weather is not very good. Maybe it’s going to rain later. This is a coastal cit
initial center point lectionInitial Center Point SelectionIntroductionThe initial center point lection is an important step in many clustering algorithms. The center point is the reprentative po
英语完形填空动词练习As a general rule， all forms of activity lead to boredom when they are performed on a routine basis. As a matter of fact， we can e this 41 at work in p
Material for Classroom Reading: The Attributive and Adverbial Claus and Translation Today we will take the attributive and adverbial claus to try to understand them and then to
