不属于生物学死亡期的特征有()。
A.瞳孔缩小
B.心脏停搏
C.呼吸停止
D.出现尸冷
E.各种反射消失
参考答案:A, B, C, E
As for the influence of Internet,nowhere()the results more clearly than in the US.
A.we have seen
B.we had seen
C.seen we have
D.have we seen
Firewall is a mechanism used by organizations to protect their LANs from the Internet.
A.reliable
B.stable
C.peaceful
D.security