下列关于我国私人银行的发展现状的说法正确的是（）。 ["市场潜力巨大","竞争主体多元化","竞争激烈","处于起步阶段"]
黄土高原自然灾害发生越来越频繁的原因是（） ["地理位置特殊","生态系统比较稳定","人类不合理开发利用","全球气温升高"]
The SOLAS Convention is the main international convention（） ["about marine pollution prevention","covering safety of life","about marine","about ship and port security"]
2000年8月19日，由江泽民总书记题写碑名的“三江源自然保护区”纪念碑揭碑仪式隆重举行，它标志着我国面积最大的自然保护区正式成立。该自然保护区主要保护（） ["高寒草甸和湿地","温带针阔叶混交林","亚热带常绿阔叶林","温带草原及湖泊"]
The latest annex of MARPOL 73/78 is about（） ["the Prevention of Pollution by Oil","the Prevention of Pollution by Noxious Liquid Substances in Bulk","Prevention of Pollution by Garbage from Ships","Prevention of Air Pollution from Shi"]
弹簧操动机构为什么必须装有“未储能信号”及相应的合闸回路闭锁装置？
