如果要分页显示当前磁盘文件目录,应使用()命令。
2016年l1月16-18日,第三届世界互联网大会在水永久会议举办地――浙江乌镇举行,来自世界各地的互联网巨头们以“创新驱动造福人类――携手共建网络空间命运共同体”为主题展开热烈讨论,共商合作共赢大计。下列有关世界互联网大会对我国的影响叙述正确的是() ["带来大量外商投资","培养大批技术人员","提高加工制造水平","促进传统产业升级"]
During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?() ["failure of the proper operation of emergency generator","insulation of piping including exhaust pipes in engine room contaminated by oil","improper operation of bilge of bilge of bilge pumping arrangements","damaged sanitary pum"]
In the Northern Hemisphere,your vessel is believed to be in the direct path of a hurricane,and plenty of sea room is available. The best course of action is to bring the wind on the(). ["starboard bow,note the course,and head in that direction","starboard quarter,note the course,and head in that direction","port quarter,note the course,and head in that direction","port bow,note the course,and head in that directio"]
下列选项中不属于人防范畴的是()。 ["建立健全安全保卫队伍","贯彻落实安全保卫各项规章、制度","营业场所内安装的防入侵报警装置","开展安全检查和安全教育培训"]
液压下降引起合闸闭锁可能的原因有哪些?