“最近发展区”理论是由()提出的。
A.皮亚杰
B.维果斯基
C.杜威
D.福禄贝尔
参考答案:B
After some time in the dark cave, our eyes slowly _____ the dark. [ ]
A. used to
B. adapted to
C. accustomed to
D. helped to
无线电波的传播方式主要有()
A.直射
B.反射
C.绕射
D.散射