单选题 Satellite conmunications 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】 B
【答案解析】[解析] 辨析。gliding“(飞机等)滑翔，滑行”；cruising“(船、飞机等)航行，游行”；piloting“(给船)领航，驾驶(飞机)”；patrolling“巡逻”，该句意为“在太平洋中部航行时”，故只能选cruising。