电气控制原理图的分析，是控制原理图分析的（）
参考答案：中心内容
Because of too many differences between the two sides, a lot of questions are still left ________.
A in the air B on the air C by the air D through the air
我国《外汇管理条例》中所称的境内机构不包括外商投资企业。( )
