根据劳动的二重性,劳动可分为()
A、体力劳动和脑力劳动C
暂无解析
Mrs.Weinsteinbravelyandpersistentlyusedeveryskillandpowershehadtoherattackertosimplytakehercarandnotherlife.
Whenapersonimmigratestoanothercountry,heshould_(conscious)adapthimselftothenewenvironment
质点沿x轴作简谐振动,其运动学方程x=cos()At,则速度表达式为()
Thefixedstarwasaplanet.()
一电子的动量为3.0×10-24kgm/s,则相应的德布罗意波的波长为(普朗克常量h=6.63×l0-34Js)()