报检员证有效期为2年。超过有效期的必须在当地检验检疫机构履行审核手续。
参考答案：错
Can you imagine John _____ his work ahead of time though he had three days off? [ ]
A. finish
B. finishing
C. to finish
D. to have finished
在带电的导线、设备、变压器、油开关附近不应有（）
A、任何人员逗留
B、任何易燃易爆物品
C、任何其他设备
