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问题

英国工业革命中，纺织工人哈格里夫斯发明的机器是

A．骡机

B．蒸汽机

C．汽船

D．珍妮机

答案

答案：D

题目分析：英国工业革命中，纺织工人哈格里夫斯发明的机器是珍妮机，珍妮机的发明代表了工业革命的开端，故选D。

问答题 简答题

经营哪些高风险旅游项目应当按照国家有关规定取得经营许可？
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单项选择题

The Border Gateway Protocol (BGP) is an interautonomous system. ______ protocol. The primary function of a BGP speaking system is to exchange network ______ information with other BGP system. This network reachability information includes information on the list of Autonomous System (ASs) that teachability information traverses. BGP-4 provides a new set of mechanisms for supporting ______ interdomain routing. These mechanisms include support for advertising an IP ______ and eliminate the concept of network class within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including ______ of AS paths. These changes provide support for the proposed supernettting scheme.

A. reservation B. utilizationC. aggregation D. connection
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