题目内容

下列对电磁流量计安装描述不正确的是（）

A. 电磁流量计的测量管必须在任何时候都是完全注满介质的
B. 安装时要注意流量计的正负方向或箭头方向应与介质流向一致
C. 在敞开进料或出料时，流量计安装在低的一段管道上
D. 对于严重污染的流体的测量，电磁流量计应安装在主管上

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与交通事故相比，下列哪一项属于飞行器事故的特点？（）

A. 人员伤亡多，财产损失大
B. 极易造成次生灾害
C. 失事地点不确定，救援困难
D. 救援难度大

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“三包”有效期从哪日算起？

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Company.com has a two-node HACMP cluster with a single cascading resource group. Node ’A’ is the normal production node， and Node ’B’ is the standby node. One of the first steps in the HACMP test plan is to start the cluster and to verify that al elements for the resource group have been acquired. The administrator who is conducting the HACMP test starts the HACMP daemons on Node ’B’ with the ’smitty clstart" command. The administrator notices that Node ’B’ acquires the elements of the resource group， including a service IP labels，a shared volume group， and an application server that has been started. The expectation was that Node ’B’ would enter the cluster in a standby status， rather than acquiring production resources. What should the administrator do to correct this problem？（）

A. Change the cluster to a rotating design.
B. Change the Cascading without Fallback flag to true.
Change the Inactive Takeover field to false in the cluster configuration.
D. Nothing should be done. This is the default behavior for cascading resource groups，and node ’A’ should have been started first.

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对外贸易的地理方向反映（）。

A. 各国或各地区的出口贸易额占世界出口总额的比重
B. 各国或各地区的进口贸易额占世界进口总额的比重
C. 一国各类出口商品在世界出口总额中所占的比重
D. 一国的出口商品去想和进口商品来源

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