A Convention about safety of life at sea was adopted in 1974 which included a new amendment procedure, according which an amendment shall enter into force（） after being accepted by more than two thirds of the Parties。 after being accepted by more than half of the Parties。 within a specified period of time with no objections。 within a specified period of time with no exceptio。
简述田口方法。
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。
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？
简述安全性设计的要求。
The SOLAS Convention is the main international convention（）
