单项选择题

高沸点塔塔底温度和压力是()

A.30~35℃,0.5~0.6MPa(表压)
B.35~40℃,0.5~0.6MPa(表压)
C.30-40℃,0.35~0.45MPa(表压)
D.40~45℃,0.4~0.5MPa(表压)