A. ρ=(8.35256 ± 0.0153)g cm -3,U rρ=0.1834% B. ρ=(8.352 ± 0.015)g cm -3,U rρ=0.18% C. ρ=(8.353 ± 0.015)g cm -3,U rρ=0.200% D. ρ=(8.35256 ± 0.015)g cm -3,U rρ=0.18%
A. 对 B. 错