题目

Tattoos （纹身） and body piercings （穿孔） have moved up on the trend list in recent years.     Around Western schools lots of teens are sporting new holes and “flesh ink” （纹身）．As with all other subjects, the Chinese will surely have to deal with this situation with respect to their children．To get a better view of what has happened in the West, let’s sit down and hear what they say. Tiara from Indiana: I personally think body piercing is sickening．If there were supposed to be holes in your body, you would have been born with them．I do, however, think that ea在同一坐标系中,二次函数和的图象都具有的特征是       （只写一条）．