- 搜标题
- 搜题干
- 搜选项
The necessary and sufficient condition for phenomenon similarity is （ ）.
A. the second similarity theorem
B. The First Theorem of Similarity
C. Dimensional analysis
D. The Third Similarity Theorem
A. the second similarity theorem
B. The First Theorem of Similarity
C. Dimensional analysis
D. The Third Similarity Theorem
