当电力系统发生故障时，要求继电保护动作，将靠近故障设备的断路器跳开，用以缩小停电范围，这就是继电保护的()。
A、选择性A
暂无解析
Lastnighthesawtwodark_____enterthebuilding,andthentherewastheexplosion.
题目：Reassessmentofjobsatisfaction
We _____ you of our readiness to serve you in this end all future business.
MRKConsultingLtdhasbeenoperatingintheglobalmarketsince1988.WehavesuccessfullyplacedhundredsofIT&BankingprofessionalsinleadingcompaniesintheFinance,BankingandITindustries.
Marykeepstalkingabouttheparty.Shehadaverygoodtime,______she?
