理想的治疗方法是A．力争手术切除B．局部放射性照射C．联合化疗D．免疫疗法E．中医疗

采煤工作面刮板输送机必须安设能停止或启动信号的装置，发出信号点的间距不能小于（）m

关节镜检的适应证是（）

A.感染性关节炎的鉴别

B.关节半月板损伤的处理

C.了解关节内软骨的破坏程度

D.肩袖破裂的部位及程度

E.关节滑膜活检

上消化道钡餐检查，正常空肠黏膜皱襞多呈（）。

A.弹簧状

B.腊肠状

C.羽毛状或雪花状

D.鱼骨状

E.线状

Because Web servers are platform and application (71) they can send or request data from legacy or external applications including databases. All replies, once converted into (72) mark-up language, can then be transmitted to a (73) . Used in this way, Intranets can (74) lower desktop support costs, easy links with legacy applications and databases and, (75) all, ease of use.

A．client

B．browser

C．server

D．router

用来鉴定RNA的技术是

A．Northern印迹杂交
B．亲和层析
C．Southern印迹杂交
D．Western印迹杂交
E．离子交换层析