学前期是儿童语言获得的（）时期。
参考答案：关键
飧泄是指（）
A.大便稀溏
B.泄泻无度
C.大便完谷不化
D.下利脓血
E.濡泻
It is such good weather, and I suggest you get in a sport you like and enjoy yourself.[ ]
A. burned
B. started
C. caught
D. involved
