地方软件不得与现有省统一软件或者是省局即将开发的统一软件在业务内容上重复、冲突，否则（） ["应当停止使用","应当立即停止开发","应当立即重新开发","统一使用"]
The complying vessels can transmit ship-to-shore distress alerts by at least（）. ["One means, whether satellite or terrestrial techniques","Two means, whether satellite or terrestrial techniques","Two separate and independent means, each using different radio communication services","Two means, such as MF DSC and HF DSC"]
从方式上看，可将复习分为（）。 ["阶段复习","阅读教材","整理笔记","做习题"]
简述企业进行工作分析的时机。
单丝埋弧堆焊的特点是什么？
什么是工作日志法，它有何优缺点？
