真空断路器VCB兼具（）和（）的功能。
To proceed to the assistance of a ship in distress is（） an obligation for masters of passing by ships。 optional for masters of passing by ships when the weather is fine。 prohibited by the Convention SOLAS, 1974, as amended。 prohibited by the convention STCW 78/95。
According to SOLAS, 1974, as amended, the shipowner or any person who has assumed responsibility for the ship (the “Company”) must（） establish SMS in accordance with ISM。 establish ISM in accordance with SMS。 establish ISM and SMS。 both B and C。
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。
关于我国各地水土资源的叙述，正确的是（）
