流明
参考答案:
光通量的单位。发光强度为1坎德拉(cD.的点光源,在单位立体角(1sr)内发出的光通量为“1流明”,英文缩写(lm)。
In case Customs duties are short-levied or not levied on import or export, the Customs may, within ______ after the date of payment of Customs duties or the date of release of the goods, recover the amount of Customs duties short-levied or not levied.
A. six months B. one year C. two years D. four years
经批准的统计调查项目,应当在()的右上角标明法定标志。
A.统计标准
B.统计制度
C.统计调查方案
D.统计调查表