单选题 He has exhibited symptoms of anxiety and overwhelming worry.
【正确答案】 C
【答案解析】[解析] 本句意思:他表现出了焦虑和极度担忧的迹象。exhibit意思是“显示,表现,展出(物品)”,与show(展示,显露)意思相近,spread扩散,传播;open打开;examine考查,检查。