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【单选题】
以下网络安全防御技术中,哪个是一种较早使用、实用性很强的技术,它通过逻辑隔离外部网络与受保护的内部网络的方式,使本地系统免于受到威胁A.
防火墙技术
B.
入侵检测与防护技术
C.
VPN技术
D.
网络蜜罐技术
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Saul Bellow became a naturalized US citizen in _____.
A.
1939
B.
1940
C.
1941
D.
1945
【单选题】Saul Bellow is also uniquely noted for _____.
A.
his use of biographical elements
B.
his use of Jewish fables and romance
C.
his use of familiar setting
D.
his use of issues having to do with freedom and love
【单选题】Which of the following is NOT written by Saul Bellow?
A.
Dangling Man.
B.
The Assistant.
C.
Herzog.
D.
Henderson the Rain King.
【单选题】Mary is the only one of the girls who _____ often late for school.
A.
is
B.
are
C.
comes
D.
get
【简答题】Mary is the only one of the team members____________to be transferred. A.who is going B.who are going C.who have been going D.who has been going
【简答题】c语言作业2c.doc
相关题目：
【单选题】Mary is the only one of the girls who _____ often late for school.
A.
is
B.
are
C.
comes
D.
get