In the process of the shafting management, special attention should be paid to（）
A. on the sailing, the water in the aft peak tank should be excluded as much as possible
B. the stuffing style ahead sealing shouldn’t have any water leaking out
C. Simplex astern sealing shouldn’t have any oil leaking out
D. Simplex ahead sealing can have some oil leaking out
微信支付 
支付宝支付