“粳米”，有人读gěngmǐ，有人读jīngmǐ，后者的读音是错误的。
在使用油机时，起动发电机后应先运行（）分钟，检测一切正常，将交流配电箱应急输入开关合闸，然后闭合油机端的电源输出开关 ["1－2分钟","2－3分钟","3－5分钟","15分钟"]
非正式沟通的缺点是（） ["沟通过程比较难以控制","传递的信息往往不确切","方式呆板、速度迟缓","可以传播一些不便正式传播的信息","能够提供正式沟通中难以获得的信息"]
哪些行为不得担任公司的董事、监事、高级管理人员？
Which statement best describes echo?（） ["Echo is the discernable leak-through of your own Rx path into your own Tx path. ","Echo is the discernable leak-through of the packets of your Rx path into your own Tx path. ","Echo is the nonaudible leak-through of the packets of your Rx path into your own Tx path. ","Echo is the audible leak-through of the packets from the transmit path into your own receive path. ","Echo is the nonaudible leak-through of the packets of your Tx path into your own Rx path."]
说明变速器速比的确定方法。
