热爱专业、忠于职责,是科技职业道德的基本原则,是科技人员从事科技劳动的基本的( )。
A、核心要求B
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Thesadconditionofwomenworkingashouseservantsaroundtheworldreceivedmuchmedia_____earlythisyea
Ataskofthepostofficestaffisto_(class)mailaccordingtotheplacesitistogo
Robots,___(become)increasinglyprevalentinfactoriesandindustrialplantsthroughoutthedevelopedworld,areprogrammedandengineeredtoperformindustrialtaskswithouthumanintervention.
单匝平面载流线圈的面积为0.lm²,通以电流强度为0.4A的电流,该线圈的磁矩大小为()
一热机的循环效率为15%,在一次循环中从外界吸热2000J,则此热机在一次循环中所做的净功为______J.