提升儿童的自然生成性书写能力的方案包括以下哪些步骤?()
A.示范、提供
B.观察、互动
C.干预
D.评价
参考答案:A, B, C, D
17. Can you lend me the book ________ the other day?
A.which you talked
B.that you talked
C.about that your talked
D.you talked about
位移传感器的工作原理和作用?