A ship is side to be（）when the whole ship moves bodily to port and then to starboard.

A.rolling

B.pitching

C.heaving

D.swaying

真菌败血症的特点有（）

A.可有长期应用皮质激素的病史

B.病原菌以脆弱类杆菌多见

C.可有长期应用广谱抗菌药物或肿瘤化学治疗的病史

D.临床毒血症症状可被原发病及伴发的细菌感染掩盖

E.大多数真菌败血症不播散