可实现“门到门”运输的是（） 铁路运输。 水路运输。 公路运输。 航空运输。
Continuous availability is required for an application in a two-node cluster. There is one rotating resource group in the cluster， and the nodes are identical machines. Client telnet connections to the application cannot be broken because it takes 20 to 30 minutes to recycle the client workstations and transactions will be lost. What configuration best provides continuous connectivity to the application？（） IPAT using IP Replacement without MAC address takeover.。 IPAT using IP Aliasing and hardware MAC address takeover.。 None because continuous telnet connectivity cannot be provided with HACMP.。 Shared service IP address assigned to multiple network interface cards on each node.。
下列属于抗氧化剂的有：（）。 维生素A。 β-胡萝卜素。 类胡萝卜素。 维生素。
Given: What is the result?（） test end。 Compilation fails.。 test runtime end。 test exception end。 Throwable is thrown by main at runtime.。
《民事诉讼法》规定：证据包括：（）。 A.当事人陈述、书证、物证、证人证言、勘验笔录、鉴定意见 。 B.物证、书证、证明人提供的资料、鉴定结论、勘验笔录 。 C.鉴定报告、当事人提供的资料、勘验笔录、物证 。 D.鉴定咨询报告、书证、物证、证人证言、勘验笔录。
A system must be evaluated and tuned. In order to use a set of performance evaluation programs （e.g. filemon， svmon， and tprof）， which of the following packages should exist on the system？（）
