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
查看答案
Even a person joins the crew, he has to go through the pre-boarding security screening procedures.
试论中国人民银行专门行使中央银行职能的背景及重要意义。
烟火制品包括()
A. 信号弹，烟花，礼花
B. 礼花弹，燃烧弹，爆竹
C. 燃烧弹，烟花，礼花
D. 礼花弹，烟花，爆竹
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