【单选题】1927年,大革命失败后,在国民党的统治下,中国的社会性质是( )。
【多选题】按输入量的物理性质分类,可将继电器分为( )。
【多选题】继电器按输入量的物理性质分类:可分为()。
【单选题】按输入物理量的性质继电器分( )电流继电器
【判断题】大革命失败后,在国民党的统治下,中国社会的性质也发生了改变。
【单选题】按( )分类,继电器可分为电磁继电器和感应继电器。
【简答题】通常南半球热带气旋生成于副高的:( )侧
【单选题】What can we infer from the story of Angela and Jonathan?
A.
Jonathan has learned a useful skill.
B.
Angela has learned to use his own observation and exploration to discover new objects.
C.
From the experiment, we can see two different ways of learning or teaching.
D.
Jonathan's learning is teacher-centered, while Angela's learning is student-centered.