心理学家____关于发生认识论的研究,揭示了个体认知发展的一般规律。
参考答案:皮亚杰
--Tell me ____________.
---Well, it’s like …
A.what is wrong with it
B.what is it
C.what the matter is with it
D.what is it like
A级电工绝缘材料的极限温度为()
A.90℃
B.105℃
C.110℃
D.120℃