The Certificate of Inspection on a passenger vessel of over 100 gross tons must be posted （）. ["in the Master's office","on the bridge","in a conspicuous place where observation by the passengers is likely","in the passengers' dining room or，where there is no dining room，in the lounge area"]
投标保证金被没收的情形有哪些？
如果浏览器上的“前进”按钮呈现灰色，表明浏览器显示的已经是最新打开的页面；如果“后退”按钮呈现灰色，则表明已经回到初始页面了。
建设期现金流量，主要表现为现金流出量，包括（） ["固定资产投资","配套的流动资金投入","生产经营成本","清理费用"]
产业竞争分析中存在的竞争力量有哪些（） ["潜在的行业新进入者","替代品的威胁","购买商讨价还价的能力","现有竞争者之间竞争"]
智能电网的5大特征是什么？
