患者女，69岁。30年前无诱因出现右髋部疼痛，呈钝痛，偶尔放射至右膝关节，长距离行走及天气变化时疼痛明显，休息后缓解。15年前，右髋部疼痛程度加重，持续时间延长，逐渐出现跛行。3年前，右髋部疼痛进一步加剧，疼痛持续存在，不能上、下楼梯，平地全程扶柺行走。
需要考虑的诊断是（）.（提示：X线检查结果提示：右侧股骨颈变短，股骨头形态不规则，髋臼倾斜度增加，臼缘密度增加，软骨下骨囊性变，关节间隙变窄。）
A.右髋关节结核
B.强直性脊柱炎
C.右髋关节Charcot关节炎
D.右髋关节骨关节炎
E.右髋关节化脓性关节炎
参考答案：D
The concept of homeschooling is not a new one. Homeschooling means educating children at home instead of sending them to public or private schools. Nowadays, homeschooling has become popular in many countries for a variety of reasons. One of them is poor quality of education in public schools and it’s also because private schools are quite expensive. Some parents believe that because they know their child’s strengths and weaknesses, they can teach him or her better. Some parents prefer homeschooling so as to prevent their children from getting into bad company. There is another group of people who choose to educate their children at home because they want them to learn spirit and values of the family and also their religious beliefs. They also think that homeschooling would help in development of strong family bonds(家庭纽带). However, there are some negative effects of homeschooling on students as well as parents. Homeschooling is a full-time job and not fit for parents who have their own careers. It takes a lot of time for parents’ side to make homeschooling a success. Other family members’ responsibilities may also be affected. They may give their full attention to the needs of their children. Besides, a parent may have high educational qualifications, but that does not make him or her a good teacher. Teaching is an art, which requires the ability to understand the needs of the children. It is likely that the parent might have forgotten what he or she has learned, and the curriculum(课程) of the children would also be different. This would make it difficult for the parents to explain the concepts to their children. Parents also have the responsibility of designing the curriculum of students. In today’s world, competition(比赛) is seen in every field, and school prepares children to face these competitions. However, homeschooling does not give the children a chance to compare with other kids. They will also not be aware of where they stand in educational position among their classmates. This may affect their future lives. Education is not the only thing that the children need to become successful human beings. It is necessary that they learn to communicate in the society, and public school provides them with such an environment, where they meet many people. Schools also provide children with a chance to take part in various activities to improve their overall development. It is true that it has many benefits, but one must realize that school teaches children skills to face and survive. Homeschooling
|