单选题
It can safely be inferred that Sept. 11 ______.
A、
confirmed the failure of polygraph in detecting deception
B、
made American begin to know about lie detection
C、
gave a spur to the study of lie detection in the United States
D、
triggered America's development of lie detectors
【正确答案】
C
【答案解析】
由with fresh interest since Sept.11, the discovery is part of a boom in the scientific study of deceit and its detection可知正确答案是C(推动了美国的探谎研究)。
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