【单选题】将称量好的基准物质倒入用蒸馏水洗好的湿烧杯,对分析结果产生的影响是( )
【单选题】钢轨中( )化合物的存在会降低钢的塑性和韧性。
【单选题】将称好的基准物质倒入湿烧杯中,对分析结果产生的影响时( )。
【单选题】将称量好的基准物质倒入湿烧杯,对分析结果产生的影响是( )
【单选题】将称好的的基准物质倒入湿烧杯中,对分析结果产生的影响是( )
【单选题】How to prevent the reception of unwanted broadcasts by vessels utilizing the NAVTEX system?
A.
Operating the receiver only during daytime hours.
B.
Coordinating reception with published broadcast schedules.
C.
Programming the receiver to reject unwanted broadcasts.
D.
Automatic receiver de-sensitization during nigbt hours.