下列哪种细菌感染后最易引起溶血性尿毒综合征?()
A.空肠弯曲菌
B.假结核耶尔森菌
C.宋内志贺菌
D.肠炎沙门菌
E.O157:H7大肠杆菌
参考答案:E
At the required fire drill conducted aboard a vessel,all persons must report to their stations and demonstrate their ability to perform the duties assigned to them().
A.by the toolpusher
B.in the station bill
C.by the person conducting the drill
D.at the previous safety meeting
IPV6功能改进主要体现在(),引入即插即用功能和具有QOS等几个方面
A.128bit的地址空间
B.网络地址分层结构
C.高效的路由寻址效率
D.安全功能的增强