质量相等，温度不同的两个铁块，温度________的具有的内能大；温度相等，质量不等两个铁块，质量 ________的内能大。
高；大
— Oh, this cartoon book is very interesting. Where did you buy ____? I want to buy _____, too.
— In the bookshop near my home. [ ]
A. one; one
B. it; it
C. it; one
D. one; it
简要说明前运算阶段儿童思维的特点。
