The Olympic remind us of where the Olympics are held and the characteristics of the host

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(答案→)A. symbols
B. signals
C. marks
D. signs
解析：考查名词辨析。symbols“象征, 标志，符号”，Olympic symbols“奥林匹克标志”。signals“信号, 暗号”，marks“记号, 标记”，signs“标记, 符号，手势, 姿势, 信号”。