A.86666.67
B.146666.67
C.683666.67
D.686666.67
A.129.89
B.131.89
C.88.59
D.86.59
A.225和250
B.195和220
C.130和195
D.200和200
A.665
B.686
C.687
D.700
A.48.72%
B.48.78%
C.50.00%
D.51.22%
A.48.72%
B.48.78%
C.50.00%
D.51.22%
A.免抵退税
B.免退税
C.免税
D.征税
某井压井液密度为1.20g/cm??3??,垂直井深为2000m,求井底静液柱压力Ph(重力加速度g取9.8m/S??2??,计算结果保留两位小数) ???
A.7.62%
B.7.52%
C.6.80%
D.6.69%