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【单选题】
TCP SYN Flood 攻击的原理是利用了()。A.
TCP 三次握手过程
B.
TCP 面向流的工作机制
C.
TCP 数据传输中的窗口技术
D.
TCP 连接终止时的FIN报文
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举一反三
【单选题】By the middle of the 18th century, many different kinds of Protestants lived in America. Although the Church of England was an established church in several colonies, Protestants lived side by side in...
A.
To cut across the lines of Protestant religious groups or denomination.
B.
A revival movement of seeking to breathe new feeling and strength into religion.
C.
To live side by side in relative harmony.
D.
To spread religious idea to other countries.
【单选题】下列各项中,属于修订后的《会计档案管理办法》施行日期是( )
A.
2016 年 1 月 1 日
B.
2016 年 3 月 1 日
C.
2016 年 6 月 1 日
D.
2016 年 9 月 1 日
【单选题】By the middle of the 21 st century, the vast majority of the world’s population _____ in cities rather than in the country.
A.
are living
B.
will be living
C.
have lived
D.
will have lived
【单选题】By the middle of the 1920s the farthest corners of the earth explored.
A.
are
B.
were
C.
have been
D.
had been
【单选题】By the middle of the 21st century, the vast majority of the world’s population
A.
other than
B.
more than
C.
better than
D.
rather than
【单选题】By the middle of the 21st century, the vast majority of the world’s population ______ in cities rather than in the country.
A.
are living
B.
will be riving
C.
have lived
D.
will have lived
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