在通信站中，保护接地应接至何处？
A shipper of cargo aboard your vessel offers a letter of indemnity for the cargo. This is done in order to obtain a(n)（）. ["Clean Bill of Lading","Order Bill of Lading","Straight Bill of Lading","Through Bill of Lading"]
One of the main functions of wearing rings, as used in a centrifugal pump, is to （）. ["maintain radial alignment between the pump impeller and casing","absorb all impeller shaft end thrust","prevent water leakage to the atmosphere","prevent wear of the pump casing and\/or impeller"]
科学家研究甲、乙两种生活在不同栖所的哺乳动物，分析母乳的成分如下表；分别强迫灌饮海水1公升后，再分析尿量和其成分，结果亦列于下表。
下列有关“甲、乙两种动物”的叙述正确的是（） ["甲为陆生动物，乙为水生动物","甲为恒温动物，乙为变温动物","甲生活环境的平均温度比乙低","甲经由代谢途径获取水分的效率比乙低"]
客户导向理念演进发展中的初级阶段是（）。 ["客户满意阶段","增加客户价值阶段","客户至上阶段","客户第一阶段"]
UFI
