保持党的先进性和纯洁性，增强党的凝聚力和战斗力的保证是A．贯彻民主集中制原则 B．发

节流管汇和压井管汇的压力等级应与全井防喷器（）等级相匹配。

颈内动脉在颈部的分支有（）

A.颞浅动脉

B.上颌动脉

C.甲状腺下动脉

D.无分支

E.面动脉

近日，由于油门踏板和脚垫的原因，丰田在美国召回109万辆汽车。美国在汽车产品缺陷而导致安全事故的监督方面走在世界的前列，该国有专门规范此类行为的法律，对违法行为最高罚款可达10亿美元。这启示我们，在进入汽车社会以后，构建放心的用车环境首先需要（ ）

A．有法可依

B．有法必依

C．公正司法

D．监督守法

Your organization is having a difficult time managing its many projects. You have been asked to help senior management decide how to proceed. What should you do first

A．Review all of the organization's project documents to understand how they manage project

B．Send a formal memo to all project managers requesting their detailed project plans and status report

C．Meet several senior managers separately to get a feel for what is really happenin

D．Give a presentation on best practices to all the senior manager

高压试验工作不得少于两人。试验负责人应由有经验的人员担任，开始试验前，试验负责人应向全体试验人员详细布置，交待邻近间隔的带电部位，以及其他安全注意事项。