原式=(6+8-5)2
=92.
病原体均能被如下因素清除,但不包括()
A.自身免疫性抗体
B.人工注射的特异性IgG
C.来自母体的特异性IgG
D.通过预防接种产生的抗体
E.同一病原体感染后产生的抗体
PLACE ON DECK,IN MESS ROOMS,ETC.,ASSIGNED TO CREW AND PASSENGERS WHERE THEY HAVE TO MEET ACCORDING TO THE MUSTER LIST WHEN THE CORRESPONDING ALARM IS RELEASED OR ANNOUNCEMENT MADE means().
A.Deck area
B.Dining room on board
C.Assembly station
D.Hold