确定一种传染病的隔离期是根据（）
A.该病传染性的大小
B.病程的长短
C.病情严重程度
D.潜伏期的长短
E.感染期
参考答案：E
给定IP地址为140.252.12.120，子网掩码是255.255.255.0，那么主机号是 (66) ，该子网直接的广播地址是 (67) 。
A．0.0.0.120 B．0．0.12.120 C．0.0.12.0 D．0.252.12.120
There, a big memorial has been build _____ him, who devoted himself to the poor.
A．in favor of
B．in memory of
C．in face of
D．in need of
