A.室,10~20 B.常,10~20 C.室,20~30 D.常,20~30
A.410MPa、585MPa B.410MPa、590MPa C.415MPa、585MPa D.415MPa、590MPa
A.1 B.2 C.3 D.4
A.5s B.15s C.30s D.60s
A.0.03 B.0.05 C.1 D.2