根据韦纳的三维归因模式,运气好坏属于( )的因素。
稳定、内因、不可控
不稳定、内因、可控
稳定、外因、不可控
不稳定、外因、不可控
医药工业上用精制的BaCl2饱和溶液与Na2SO4溶液混合,制备消化系统造影剂硫酸钡。已知20℃时的溶解度为36g,计算此时下一篇 Christmas GiftMary didn’t know what to send to her grandparents for Christmas. It was always hard to choose a good Christmas present for them. They didn’t need much, and it was hard for her to be creative every year.One year,