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我国第二炮兵于哪一年成立的?

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礼品包扎操作的第五步骤是()。

A. 粘花
B. 中间交叉
C. 两头交叉
D. 困扎

Part of the job as a network administrator is being able to make a distinction between routed protocols and routing protocols. Which of the following statements is true regarding them?()

A routing protocol is assigned to an interface and determines the method of packet delivery.
B. A routed protocol is assigned to an interface and determines the method of packet delivery.
C. A routing protocol determines the path of a packet through a network.
D. A routed protocol determines the path of a packet through a network.
E. A routing protocol operates at the transport layer of the OSI model.
F. A routed protocol updates the routing table of a router.

突发事件的类型按形成过程可分为()

A. 蔓延性突发事件/周期性突发事件/突发性事件
B. 直接性突发事件/间接性突发事件
C. 显在性突发事件/潜在性突发事件
D. 内部突发事件/外部突发事件

磁粉探伤设备采用可控硅调压的方法,是调整可控硅的导通角来控制初级电压达到磁化电流连续可调的目的

A. 正确
B. 错误

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