从技术层面着,企业信息化建设需要完成构建信息网络、______________、利用信息资源等三个层面的工作.
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From 1800 to 1968 Admiralty charts were published with fathoms and feet as the units for depths,and feet as the units for height.Since 1968 Admiralty charts ________ to meters,thus conforming with charts of most other countries.
A. gradually converted
B. have been gradually converted
C. has been gradually converted
D. is gradually converted
救生艇应在______上写明船籍港。
A. 艇首左右舷
B. 艇中左右舷
C. 艇尾左右舷
D. 任意部位
除应变部署外,每个船员的床头和写字台上应张贴一张:
A. 值日表
B. 台历
C. 工作计划表
D. 应变任务卡