在打点计时器打下的纸带上，每5个点取1个测量点，共取了七个点，并测得相邻测量点之

电压互感器器身装配验收标准叙述正确的是（）。

A.组装车间应整洁、有序，具有空气净化系统，严格控制元件及环境净化度

B.装配时，应按图纸装配，各附件装配到位，固定牢靠

C.电容式电压互感器的中间变压器、阻尼器、补偿电抗器圈数记录、出线标志符合图纸要求

D.互感器的二次引线端子应有防转动措施，防止外部操作造成内部引线扭断

(31) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (32) for designing and constructing an improved system. (33) is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (34) . (35) is another such technique that integrates data and process concerns into constructs called objects.

A．Structured analysis

B．Information Engineering

C．Discovery Prototyping

D．Object-Oriented analysis

若用户有水塔或水池等二次供水设施，应注意哪些用水卫生？

行人通过电气化铁路平交道口时，必须遵守的规定是什么？

不安全心理状态主要有哪几种？