常压塔底重油温度达（）℃时进入减压精馏塔。

A.99%
B.99.5%
C.99.75%
D.99.9%

A.常温
B.常压
C.黑暗
D.强光

A.THCl =0.005316g/mL
B.THCl /Na₂CO₃=0.005316g/mL
C.TNa₂CO₃/HCl =0.005316g/mL
D.TNa₂CO₃=0.005316g/mL