出生至2岁左右,儿童主要是通过()图式来与外界相互作用并与之取得平衡。
参考答案:感觉运动
------I think Brazil will win the World Cup 2010.
------________________ But German is playing as well as Brazil now.
A.I don’t hope so.
B.Do you really think so?
C.You are wrong.
D.There is no doubt.
为了了解某校初三年级400名学生的体重情况,从中抽查了50名学生的体重进行统计分析,在这个问题中,总体是指______.