![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
How should we go through the security check?
A.
you should wait one by one
B.
show your certificate only
C.
put your carry _on baggage on the belt ,which will take it to be sereen bay X-ray equipment
D.
you should go through the gate and the staff may give you a personal search