继电保护的操作应注意哪些事项?
启动外围设备的工作由()来完成。 用户程序。 操作系统。 用户。 外围设备自行启动。
When two oil separators are working in series, they should work with () both as clarifiers。 first one as clarifiers, second one as purifier。 both as purifiers。 first one as purifier, second one as clarifier。
()期是指幼穗分化到抽穗这一段时间,一般需一个月左右。
How should you warm up a diesel engine that has not been run for some time? () Run it at minimum speed for a period of time。 Run it at half speed for a period of time。 Bring it to top speed immediately。 Inject ether into the air intake。
为及时、妥善处置银行营业场所重大突发事件,切实防范和化解突发事件给银行带来的风险,维护银行和社会稳定,银行营业场所发生突发事件要实行严格的()制度。