when (),the provisions of the Bill of Lading will be used as a basis for settlement.
A. an event is in connection with the marine peril at sea
B. a matter is linked to a person injury
C. a fact is being contacted by Charter Party
D. a case is related to dispute about cargo
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低温冷藏是利用机械制冷设备降温,其贮藏温度多在()℃~()℃。
可以在梯子最高梯阶上进行短时不繁重的焊接工作。
A. 正确
B. 错误
饲料中绝对干物质中粗纤维含量低于18%、粗蛋白质,大于等于20%的饲料()。
A. 粗饲料
B. 能量饲料
C. 蛋白质饲料
D. 维生素饲料
什么叫灼烧残渣?为什么说灼烧残渣只近似地表示溶解固形物中矿物质的量?