题目

阅读理解      Plan the party around your child's interest. The best way to learn about your child's idea is to ask.     Children are usually happier and better behaved at things they have helped to plan. Let your child help get ready for the party. He can help send out the invitations and clean the house.     At the party, the birthday child should greet friends and guests at the door, take their gifts and show them politely to where the party is taking place. Parents should ask the child to talk with other guests politely. Make sure the birthday child knows how to follo下列各项中，不属于生物的是（　　）A．转基因动物B．细菌和病毒C．克隆羊多莉D．土壤和河流