【简答题】完成下列对话 Tina : Anna, that outfit looks wonderful on you! _______________________ Anna : Thanks, Carla. ___________________________ You always dress so tastefully. Tina : Well, that dress certainly show...
【简答题】The average person swallows about half-a-ton of food a year — not counting drink — and though the body is remarkably efficient at extracting ( 摄取 ) just what it needs form this huge mixture, it can on...