【简答题】A.Well. Perhaps you have to explain why you were not in the office this morning. B.Why don't you go after 10:00? C.I don't think you should go to see him right now. D.You'd better go and see him now.
【单选题】女性,39岁,近3年来反复上腹部不适、疼痛、频繁嗳气。钡透和胃镜检查无阳性发现,最可能的是()
【单选题】正常人体的血液总量占体重的(2007年临床执业医师真题)
【单选题】以下关于互联网协议安全(Internet Protocol Security,IPSec)协议说法错误的是:
B.
验证头协议(Authentication Header,AH)和 IP 封装安全载荷协议(Encapsulating Security Payload,ESP) 都能以传输模式和隧道模式工作。
C.
在隧道模式中,保护的是整个互联网协议IP包,包括IP头。
D.
IPSec仅能保证传输数据的可认证性和保密性。
【单选题】48的因数有( )个,85的因数有( )个。