()用于检修,或在电梯故障后,将电梯开到平层位置的开门装置。
A、检修运行开关
B、底坑停止开关
C、过载及短路保护装置
D、直流电动机的弱磁保护
参考答案:A
企业标志设计定位要点有哪些
---Can you think of another good idea?
---This is the best approach I can imagine ______ the work ahead of schedule.
A.to accomplish
B.to accomplishing
C.accomplishing
D.accomplished