在密度浓度计算式：中ρn表示矿浆密度（g/cm3）；则q3表示（）A、盛矿浆后矿浆与

社会工作能促进服务对象的正常生活，对其理解正确的是（）。

A.让公民获得基本权利

B.为贫困者提供物质帮助

C.让个人及家庭能够承担起基本责任

D.让人们过上幸福生活

门静脉高压症合并食管胃底曲张静脉破裂出血的临床特点有（）.

A.脾肿大、脾功能亢进

B.食道黏膜撕裂引起大出血

C.球蛋白减少，导致腹水形成

D.凝血机能障碍，出血多不易自止

E.严重者导致肝昏迷

关于微循环的描述，错误的是（）

A.微循环指由微动脉到微静脉之间微血管的循环系统

B.微循环是血液循环的基本功能单位

C.微循环是调节局部血流、影响局部代谢和功能的结构

D.微循环血管包括微动脉、中间微动脉、真毛细血管、直捷通路、动静脉吻合和微静脉

E.微循环的血流只有从微动脉至动静脉吻合再到微静脉一条途径

胸外伤患者急救处理原则是()

A．保持呼吸道通畅

B．立即给予氧气吸入

C．张力性气胸应立即剖胸探查

D．迅速重建胸内负压

E．肺裂伤后造成活动性血胸者，应立即行肺叶切除术

VRML is a (151) for 3D multimedia and shared virtual worlds on the WWW. In comparison to HTML, VRML adds the next level of interaction, structured graphics, and extra (152) (z and time) to the presentation of documents. The applications of VRML are (153) , ranging from simple business graphics to entertaining WWW page graphics, manufacturing, scientific, entertainment, and educational applications, and 3D shared virtual worlds and communities.
X3D is the name under which the development of VRML is continued. X3D is based on XML and is backwards (154) with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different (155) , from high-end visualizations to lightweight applications.

A．scenarios

B．places

C．applications

D．programs