患者，女，18岁，面部检查，无明显的异常，覆
10mm，覆盖2mm，上颌
和下颌
开，四个第一磨牙轻度Ⅲ类咬合关系，牙弓无拥挤，FMA42°下颌角141．5°，下颌支高度偏短。四个第一磨牙牙胚存在。有吮指习惯。
此患者生长发育接近完成，要达到矫正目的应采取下列哪项措施（）
A.骨骼的矫形治疗
B.腔正畸与正颌外科
C.正颌外科
D.功能性矫治器
E.通过牙的移动
参考答案：E
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| Billy is a boy of fifteen. His parents died three years ago. One day when he was walking in the street, he 1 a wallet. He returned it to the owner, Mr Baker. He gave his 2 to the boy. As the boy had no job, Mr Baker made him work for him in his 3 . Billy worked so hard that Mr and Mrs Baker were 4 with him. Mr Baker loved planting 5 . The week before last, he brought a few trees home, planted them in the 6 himself and watered them every day. Several days 7 , he had to leave for another city. Before he started, he said to Billy. "Take good care of the trees. Some boys near our house always want to steal (偷) them." "Don't 8 about them, sir." answered Billy, "I'll try my best to watch them." Six days passed and Mr Baker came back. He asked, " 9 anyone ever come to steal the trees?" "No, sir." Said Billy, "To stop someone from stealing the trees, I 10 them up six days ago. I have hidden (藏) them for almost a week!"
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