以下人员的行为不值得我们尊重的是[ ] A．个体户张某诚实劳动，合法经营自己的生

下列选项中，()不属于个人耐用消费品。

A．健身器材

B．计算机

C．乐器

D．汽车

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.
Open Shortest Path First(OSPF) is a (66) routing algorithm that (67) work done on the OSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing, requires (68) processing power. The Dijkstra algorithm is used to calculate (69) OSPF routing table updates only take place when necessary, (70) at regular intervals.

A．more

B．less

C．same

D．most

男，65岁，高血压病合并糖尿病，BP 180/100mmHg，心率65次/分，尿蛋白(+)，血肌酐正常，选用下列哪类药物降压最合适

A．ACEI制剂

B．β受体阻滞剂

C．钙离子拮抗剂

D．利尿剂

E．α受体阻滞剂

常用密封件有哪几种？其用途是什么？

氧气瓶与乙炔发生器距动火点保持5m距离。