单项选择题
This article explains （）
A．the difficulties of exercising B．why exercising is good for your health C．important information to know about exercising D．why people have some wrong ideas about exercising
单项选择题 When did the name "Air Jordan" become well-known（）
单项选择题 According to the passage , which is not mentioned about Jordan's advantages（）
单项选择题 Jordan grew much taller （）
