菌痢的确诊依据是（）

A.粪培养阳性

B.粪检有巨噬细胞

C.粪便免疫学检查抗原阳性

D.粪便镜检有大量脓细胞

E.典型菌痢临床症状

During storm conditions on a vessel，the mooring tensions should be adjusted so that（）.

A.all mooring lines have a different tension

B.the leeward lines have higher tension than the windward lines

C.the maximum tension of the most heavily loaded line does not exceed the safe working load

D.all horizontal tension forces on the windward lines are no greater than the vertical tension forces