专门调查包括以下哪些调查方式（）
A.普查
B.重点调查
C.典型调查
D.抽样调查
参考答案：A, B, C, D
The experts in grammar analysis and translation approach believed that the human minds could be trained by logical analysis of the classic language，memorization of complicated rules，and ______ between languages.
电路设计的内容包括哪几个方面
