起重吊装专用工具.如发现损伤性缺陷,必须采取合理修复措施,否则不准使用。()
A、正确
B、错误
参考答案:A
皮肤上出现明显的糜烂,渗出,瘙痒,致病因素为
A.风B.寒C.湿D.虫毒E.热
Do you require any further assistance ? My ship is safe now and no assistance is necessary.This VHF communication generally takes place during().
A.salvage operation
B.cargo discharging
C.bunkering
D.towing operation