Which of the following are typical examples of emblems?

Which of the following are typical examples of emblems?

A.The “pointing” gesture, when accompanying language.

B.Patting one's pen or pencil on the desk, rubbing one's arms, nail biting.

C.The “salute” gesture (formed by briskly bringing a flattened hand to the right side of the forehead).

D.The “Ok” gesture (with one’s thumb and forefinger forming an O shape and the other three fingers stretching out).

正确答案是CD