公司将资金占用在应收账款上而放弃的投资于其他方面的收益，称为应收账款的（） ["管理成本","坏账成本","短缺成本","机会成本"]
According to the way the steering gear is operated, the steering gear may be divided into: hand - steering, （） and automatic steering. ["hydraulic steering","follow-up steering","remote control steering","air controlled steering"]
会议中如何安排座次？
THROWING OVERBOARD OF GOODS IN ORDER TO LIGHTEN THE VESSEL OR IMPROVE ITS STABILITY IN CASE OF AN EMERGENCY defines（）. ["Dropping off","Jettison","Throwing away","Taking off"]
检查岗的作用是什么？
对打错电话者，接听时如何对待？
