题型:问答题 --- Linda is playing football. ______ --- I’m visiting my aunt.A.Where are you going?B.What about you?C.It’s great.D.That sounds interesting. 查看答案
题型:问答题 氢原子核由两个质子与两个中子组成,这两个质子之间存在着万有引力、库仑力和核力,则3种从大到小的排列顺序是( )A.核力、万有引力、库仑力B.万有引力、库仑力、核力C.库仑力、核力、万有引力D.核力、库仑力、万有引力 查看答案