单项选择题 （）is not a condition for a ship of 400 tons gross tonnage and above other than an oil tanker to discharge certain amount of oil or oily mixtures into the sea.

单项选择题 You are on a multiple-product chemical tanker and will carry cargoes of ethanolamine，methyl acrylate，and glycerine. Which statement is true? （）

单项选择题 You are on a multiple-product chemical tanker and will carry cargoes of isophorone，ethylenediamine，and creosote. Which of the following is TRUE? （）