运输航空配餐和（）的车辆进入机场控制区应当全程签封，道口安检人员应当查验签封是否完好并核对（）。
参考答案：机上供应品；签封编号
“保险经纪从业人员资格证书”有效期为（）年，自颁发之日起计算。
A.2
B.3
C.5
D.6
It is most________that the environmentalists will come to the area to investigate the possible damage
caused by the serious pollution. [ ]
A. likely
B. perhaps
C. possibly
D. probably
