相对剩余价值生产是()
Thetheoryofblackholesinspace__(accept)bymanyseriousscientistsandastronomers.
Thesadconditionofwomenworkingashouseservantsaroundtheworldreceivedmuchmedia_____earlythisyea
质量m=2kg的质点沿x轴运动,运动方程为x=0.5t2(SI),从t=0s到t=3s过程中,外力对质点做功为()
1mol单原子分子理想气体的温度从0℃升高到100℃,气体的热力学能增加了______J.(R=8.31J·mol-l·K-1)