如图，⊙O的直径为10cm，弦AB为8cm，P是弦AB上一点，若OP的长为整数,。则满足条件的点P有( )
学校开展阳光体育活动，有利于增强学生体质，提高抵抗力，预防传染病，该措施属于
He entered the room quietly.
Grace went to the store ____ (buy) some meat and vegetables.
