[单项选择]患者男，35岁，右膝关节疼痛伴低热1年，行走困难，查体：右大腿肌肉萎缩，右膝关节肿胀，呈屈曲畸形，X线片示右膝关节骨质增生，关节间隙变窄，血沉35mm/h。此患者出现高热、寒战的情况是（）
A. 骨结核的早期
B. 滑膜结核
C. 混合感染
D. 脓肿形成
E. 脓肿溃破形成窦道
F. 合并类风湿关节炎

企业投资决策的步骤为：
①可行性研究和项目评估；
②初步可行性研究；
③投资机会研究。
其正确顺序为（）。

（1）在我国许多随父母四处流动的孩子的教育问题已经成为令人担忧的问题。
（2）造成这一问题的原因。
（3）如何解决这个问题。

用人单位应当保障职业病病人依法享受国家规定的职业病待遇

职业病病人变动工作单位，其依法享有的待遇也会变化

劳动者被诊断患有职业病，但用人单位没有依法参加工伤保险的，其医疗和生活保障由该用人单位承担

用人单位已经不存在或者无法确认劳动关系的职业病病人，可以向地方人民政府医疗保障、民政部门申请医疗救助和生活等方面的救助

In some countries, societal and familial treatment of the elderly usually reflects a great degree of independence and individualism. 61) Their financial support is often provided by social security of welfare systems, which decrease dependence on their family. Additionally, older people may seek their own friends rather than become too emotionally dependent on their children. Senior citizens centers provide a means for peer-group association within one’s own age groups. There are problems, however, with growing old in the United States. 62) Glorification of youth and indifference to the aged have left many older people alienated and alone.
Some families send their older relatives to nursing homes rather than integrate them into the homes of the children or grandchildren. This separation of the elderly from the young has contributed to the isolation of an increasingly large segment of society. 63) On the other hand, there are many older people who ch