幼儿园内部环境包括（）。
A.物质环境和精神环境
B.制度环境和人文环境
C.教学环境和学习环境
D.客观环境与主观环境
参考答案：A
— Could you tell me ______?
— I live in Liaocheng.[ ]
A: where you lived
B: where were you born
C: where you live
D: where you were born
系统误差是不容易被发现的，更不容易用校正的方法克服。
