小米买一双运动鞋要135元,一个足球85元,付给营业员250元,营业员应该找回她____元。
- Are all the students from in your class?
- No, there are only 3 in our class. The others are from other countries.
豌豆果实示意图如图所示,那么该豌豆子房内的胚珠数量至少有( )