问题详情

We can learn from the passage that______.
A．certain gestures can be used as proof to judge whether a speaker is lying or not
B．politicians and businessmen lie more often than ordinary people
C．some gestures are proofs of lying only if they occur frequently
D．there is no simple way to judge if people tell lies or not请帮忙给出正确答案和分析，谢谢！