()应当建立、健全安全制度和应急机制，对学生进行安全教育。

“闻一知十”属学习中的（）现象

唐朝灭亡后，北方相继出现的“五代”是()。

She doesn´t want to work right now because she thinks that if she _a job she probably wouldn´t be able to visit her friends very often .

下列属于少年期心理特点的是（）