题目

People lie all the time, but depending on how skilled they are, it can be difficult to determine when someone is lying to you. Do you know how to recognize the signs that someone is lying to you? Some of the signs are obvious while others are more subliminal(难以察觉的), but there are ways to catch someone in a lie, you just need to know what they are. ___16___ 1. Liars make false eye contact. A person who is lying to you won’t make eye contact with you or they make too much eye contact. If a person is lying they may feel you are watching him and he will look down at the floor 以不共线的三点A、B、C为顶点的平行四边形共有(    )个． (A)1                (B)2              (C)3              (D)无数