IPSec creates a standard platform to develop secure networks and electronic ( ) between two machines。

[单选题] The connection between two networks to form. an internet is handled by a machine known as a （71） .（71）A．bridgeB．clientC．routerD．switch

[单选题]The connection between two networks to form. an internet is handled by a machine known as a ______．A．bridgeB．clientC．routerD．switch

[单选题]The connection between two networks from an intemet is handled by a machine known as a（）A . bridgeB . serverC . routerD . switch

[单选题]The connection between two networks to form an intemet is handled by amaclu

[名词解释] 平过道 foot pass between platform

[单选题]The Internet is a （）system of interconnected computer networks that use the

[单选题]What is the relationship between the two speakers?A． CoupleB． FriendsC． Classmates

[单选题]The relation between the two paragraphs is that in the 2nd paragraph the author[A] challenges the viewpoint in the lst paragraph.[B] modifies his view expressed in the lst paragraph.[C] provides the reason for the argument in the lst paragraph.[D] fu

[单选题]The operation between two fuel injections is called a （）.A . turning cycleB . working cycleC . working hourD . working stroke

[单选题]What is the crank angle between any two crank throws in the firing order of a four-stroke/cycle, in line, eight cylinder diesel engine?（）A . 45B . 60C . 90D . 100