以下不能出现分离性感觉障碍的是（） A.脊髓前角受损 B.脊髓半切损害 C.脊髓丘脑

Li Xiang, a junior 2 student, wishes he never got a mobile phone. Last week, he went to see a doctor because there was something wrong with his arms and fingers. The doctor told him that he had “mobile phone disease(疾病)”. Now, more and more teenagers are getting “mobile phone disease” __ 78__of using mobile phones.

Li Xiang got his mobile phone six months __79__. He __80__ messages to his friends with it all the time, even when going to bed. Li Xiang started to do badly in exams because he spent too much time __81__ mobile phone games. His mom felt very __82__ about him, but he didn’t stop playing with the mobile phone __83__ his arms got injured（受伤）.

Yang Ling, a doctor, says that if someone plays his mobile phone too __84__, like Li Xiang, he will get “mobile phone disease”. If teenagers find their arms or fingers hurt (疼痛), they should go to see a doctor as soon as __85__. Yang says teenagers should try to use their mobile phones less, especially at school.

Windows系列操作系统是目前PC机上使用的主流操作系统。在下列有关Windows 系列操作系统的叙述中，错误的是：

A． Windows 98不依赖于DOS，但提供DOS工作方式

B． Windows 98的系统体系结构与Windows 95相同，它是Windows 95的改进

C． Windows 2000 Professional是一种适合于在服务器上使用的版本

D． Windows XP是Windows 系列中把消费型操作系统和商业型操作系统融合为统一系统代码的操作系统

肩关节前脱位闭合复位急性期康复治疗的目的不包括（）。

A.控制疼痛

B.减轻炎症

C.减少刺激

D.增加关节活动范围

E.保护损伤组织的愈合

请简述什么是NCS，主要的作用？

下列关于无差异曲线的说法，错误的是( )

A．投资者的无差异曲线的斜率是正的

B．同一投资者有且只有一条无差异曲线

C．同一投资者在同一时点的任何两条无差异曲线都不能相交

D．无差异曲线的斜率越小表明投资者厌恶风险程度较轻