残疾一级预防的目的是()
A．增进健康
B．恢复功能
C．减轻或防止病损
D．维持正常生活
E．保持健康的心理
参考答案：C
—I can't ____my addiction to computer games.
—Come on! Computer games are ____. We play games on the iphone now. [ ]
A. get caught in; on the way out
B. get rid of; on the way out
C. be caught in; running out
D. run out of; getting rid of
某主机的IP地址为202.100.1.254/22，其子网掩码是（）。
A．255.255.250.0
B．255.255.252.0
C．255.255.254.0
D．255.255.255.0
