苏老师想对班级中幼儿的亲社会行为进行取样研究,她可以根据幼儿的行为特点把亲社会行为分为:

Rightsct hs become the theme of meeting becuse______.it hs hd profound influence B．it hs cultivted mny leders C．it hs chnged the whole world D．it hs eliminted rcil inequlityA．it has had profound influenceB．it has cultivated many leadersC．it has changed the whole worlD．it has eliminated racial inequality