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【单选题】
Most IP layer-based proxy mechanisms，such as network address translation (NAT)，only supportuni-directional proxy，from the internal network to external network(the Interned．The proxvestablishes the communication channel by (71) IP addresses．The IP addresses must be (72) ．These proxy mechanisms prevent applications that must establish return data channels from establishing their data channels，such as，multimedia applications．IP layer-based proxy mechanisms need additional software (73) for each application that uses (74) channels． SOCKS identifies communication targets through domain names，overcoming the restriction of Usina private IP addresses．SOCKS can use domain names to establish communication between separate LANs，with (75) IP addresses． (66)A.
manufacturing
B.
manipulating
C.
conduct
D.
implement
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举一反三
【单选题】中压容器设计压力在( )
A.
O.98≤p<1.2MPa
B.
1.2MPa≤P≤1.5MPa
C.
1.568MPa≤p<9.8MPa
D.
1.568MPa≤P≤9.8MPa
【单选题】Despite the fact that he has lived in China for many years, Mark still can not______ himself to the Chinese customs.
A.
adapt
B.
account
C.
adopt
D.
accept
【简答题】frightening的比较级是( )
【单选题】Even though he has lived in China for many years, Mark still can not _______ himself to the Chinese customs.
A.
apply
B.
admit
C.
adapt
D.
accept
【单选题】Mark Twain lived in ___________
A.
17 th century
B.
18 th century
C.
19 th century
D.
20 th century
【单选题】中压容器设计压力在( )
A.
0.98≤P<1.2MPa
B.
1.2 MPa≤P≤1.5 MPa
C.
1.568MPa≤P<9.8MPa D
D.
1.568MPa≤P≤9.8MPa
【单选题】Even though he has lived in China for many years, Mark still can't ____ himself to the Chinese customs. [ ]
A.
apply
B.
admit
C.
adapt
D.
accept
【单选题】中压容器设计压力在( )
A.
0.98≤p<1.2MPa
B.
1.2MPa≤p≤1.5MPa
C.
1.568MPa≤p<9.8MPa
D.
1.568MPa≤p≤9.8MPa
【单选题】中 压容器设计压力在( )
A.
0.98 ≤ P < 1.2MPa；
B.
1.2 MPa ≤ 1.5 MPa；
C.
1.568 MPa ≤ P < 9.8MPa；
D.
1.568 MPa ≤ P ≤ 98MPa
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