锚具的静载锚固性能应满足()。(检测员不考)
A.ηa≥0.95,εapu≥2.0%
B.ηa≥0.90,εapu≥1.70%
C.ηa≥0.95,εapu≥1.5%
D.ηa≥0.90,εapu≥2.0%