风机运行时油温保持在多少度之间？为什么？

患者男，47岁。既往无高血压及糖尿病史。5小时前饮酒后突然出现剧烈胸痛，伴大汗，呼吸困难，恶心，呕吐少许胃内容物。查体：BP95/65mmHg，P76次/分，肺底少许湿啰音，心脏及腹部查体未及异常，双下肢无水肿。

若心电图显示为Ⅱ、Ⅲ、aVF，V₄～V₆导联ST段压低0.2～0.4mV，T波倒置明显，实验室检查肌钙蛋白及心肌酶升高，以下治疗不合理的是（）

A.积极行急诊冠脉造影及支架植入术

B.积极行溶栓治疗

C.给予吗啡肌注

D.硝酸酯类静滴

E.美托洛尔口服

规范责任论认为，法律体现社会的价值观念，是指引和评价人的行为的规范，法律责任的本质是什么( )。

A．对违法者的道义责难

B．维护社会秩序和社会存在

C．使违法者适应社会生活和再社会化

D．行为的规范评价

引起中心静脉压升高的因素有（）

A.由直立位改为平卧位

B.骨骼肌的活动减少

C.容量血管收缩

D.输血或输液过多、过快

E.右心室射血功能减弱

VRML is a (71) 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 (72) (z and time) to the presentation of documents. The applications of VRML are (73) , 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 (74) with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different (75) , from high-end visualizations to lightweight applications.

A．inconsistent

B．independent

C．applicable

D．compatible

当地层条件差、断面特大时，一般设计成多跨结构，跨与跨之间有梁、柱连接，一般采用（）施工。

A.CRD工法

B.洞桩法

C.中洞法

D.柱洞法

E.侧洞法