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【简答题】
现有下列物质: H 2 S , HNO 3 , PH 3 , NH 3 , H 2 O , HF 2 - , 邻羟基苯甲醛,不存在氢键的是_________________;有分子内氢键的是____________________;有分子间氢键,且氢键键能最大的是___________________________。
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【简答题】若【图片】，则【图片】为（ ）
【简答题】若区域【图片】为【图片】则【图片】___________.
【单选题】TCP load distribution uses which distribution algorithm to spread the load among OP addresses in the pool?
A.
Least number of connections
B.
Amount of traffic going to each IP address in the pool
C.
Round-robin
D.
The weight is determined by the load on each server on the back end
【单选题】It’s a configuration that experts are calling a "firewall sandwich，" with the second firewall providinga second level of load balancing after traffic down. What is meant by the term "firewall sandwich...
A.
single layer of firewalling
B.
multiple layers of firewalling
C.
firewall connections in either an active or standby state
D.
an architecture in which all traffic between firewalls goes through application-specific servers
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