Which of the following operations need to be entered on the Oil Record Book Part I? （） (1) Ballast of fuel oil tanks (2) Condition of oil discharge monitoring and control system ["（1）only","（2）only","both（1）and（2）","neither（1）nor（2）"]
什么是市政工程施工干扰费？
财务杠杆效应是指（） ["提高债务比例导致的所得税降低","利用债务筹资给企业带来的额外收益","利用现金折扣获取的利益","降低债务比例所节约的利息费用"]
Before being certified by the American Bureau of Shipping，anchor chain must undergo（）. ["USCG inspection","a breaking test","x-ray inspection","spectroanalysi"]
恒流充电的优缺点是什么？
什么是二次搬运费？
