【正确答案】 B

【答案解析】[解析] 划线词的意思是“得自，起源，引申于”，B项意为“获得”，例：I haven't been able to obtain that book anywhere．我到处都没买到那本书。A项意为“剥夺”，常和“of”连用，例：The new laws deprived many people of the most elementary freedoms．新法律剥夺了许多人最基本的自由。C项意为“下降”，例：The sun descended behind the hills．太阳下山了。D项意为“痕迹；追踪，回溯”，例：The book traces the development of philosophy．该书追溯了哲学的发展过程。