ICC, which was established in 1919, had as its primary objective facilitating the flow of international trade at a time when nationalism and protectionsim posed serious threats to the world trading system.请教;此处as用法,能省略吗?
He had at last been allowed to send a fax in which he informed the editor that he had been arrested while ...请问这in which,应该对应在从句哪个位置?前面以前有宾语 the editor了,那that he had been arrested 又是什么从句?