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【单选题】
( )用于客户机和服务器建立起安全连接之前交换一系列信息的安全通道。[1分]A.
记录协议
B.
回话协议
C.
握手协议
D.
连接协议
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举一反三
【单选题】We have opened insurance you ordered for US$ 9,000 ________ the shipment by S.S/East Sun.
A.
in
B.
by
C.
of
D.
on
【简答题】请问什么是CAD,并简述下GIS与CAD的异同?
【单选题】For the goods under S/C No.234, we ______ space on S.S East Wind due to arrive in London around May 3.
A.
have bought
B.
have booked
C.
have hired
D.
have retained
【单选题】For the goods under S/C No.234,we _____ space on S.S East Wind due to arrive in London around May 3.
A.
have booked
B.
have bought
C.
have hired
D.
have retained
参考解析：
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