单选题 Satellite communication are so up-to-date that even when ______ in the middle of the Pacific, businessmen can contact their offices as if they were next door.
【正确答案】 A
【答案解析】[解析] 近义词辨析。选项都可表示“航行”的意思。gliding意为“滑翔,滑行”,通常用来描述船、飞机等交通工具的动作。根据句意:此处是指“在太平洋中部航行时,商人们都能与其办公室进行联络”。故答案为A。