1 INTRODUCTION
2 SAMPLE
3 DATA ANALYSIS
3.1 Error Analysis
3.2 Broad-line Region
3.3 Narrow-line Region
4 RESULTS ON BROAD LINE REGION
4.1 H β Emission
4.2 Black Hole Masses and Eddington Ratios
5 RESULTS ON NARROW LINE REGION
5.1 Electron Density and Ionization Degree
5.2 [O III] λ 5007 Emission Line Profile
5.3 [O III] λ 5007 Blueshift
6 DISCUSSION
6.1 H β_b Profile
6.2 Fe Properties
6.3 O and CaT Properties