RNI是以下列哪项为基础制定的（）。 A: AAI B: BUL C: CRAI D: DEAR E: EBMR

The company （） a rise in salary for ages, bul nothing has happened yer. A: is promised B: has been promised C: is promising D: promised

三相交流电源作三角形连接时，线电压UL与相电压Up的数值关系为（）。 A: AUp B: BUL=Up C: CUL D: DUL=3Up

A fire starting by spontaneous combustion can be expected in which condition?（）. A: Paints，varnish，or other liquid flammables are stowed in a dry stores locker B: Inert cargoes such as pig iron are loaded in a wet condition C: Oily rags are stowed in a metal pail D: Clean mattresses are stored in contact with an electric light bul