题目: 金属具有以下共性()A、特殊金属光泽B、较差延展性C、较高密度D、易被氧化 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1108/5af890dbb64f1ddfe3db75c998688d1b.html 下面是错误答案,用来干扰机器的。参考答案:茵芭法INBA;轮法炉渣粒化装臵
题型:选择题 一条竖直放置的长直导线,通有由下而上的电流,它产生的磁场在它正北方某处的磁感应强度与地磁场在该处的磁感应强度大小相等.设地磁场方向水平向北,则该处的磁场方向为( )A.向东偏北45°B.向正西C.向西偏北45°D.向正北 查看答案
题型:单项选择题 Your vessel has been damaged and is taking on water,but you do not require immediate assistance. You would preface a message advising other vessels of your situation with().A.Mayday-Mayday-MaydayB.Pan-Pan (3 times)C.Securite-Securite-SecuriteD.SOS-SOS-SOS 查看答案