题目内容

千斤顶按照其结构形式和工作原理不同,可分为()式、()式和()式千斤顶。

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焊(连)接接头在受弯构件的受拉区不得大于(),轴心受拉构件不得大于()。

Which three conditions can cause BGP n eighbor establishment to fail?()

A. The IBGP neighbor is not directly connected.
BGP synchronization is enabled in a transit autonomous system with fully - meshed IBGP neighbors.
C. The EBGP neighbor ebgp - multihop option is set to the de fault value.
D. The BGP update interval is different between the two BGP neighbors.
E. The BGP neighbor is referencing an incorrect autonomous system number in its neighbor statement.
F. There is an access list blocking all TCP traffic between the two BGP neighbors.

有一热电阻为20Ω,接到电压为220V的电路中,2s后电阻所放出的热量为()。

A. 2420J
B. 3430J
C. 4840J
D. 4850J

决策者已经知道未来出现哪种自然状态情况下的决策,这种决策问题称为()。

A. 肯定型决策
B. 菲肯定型决策
C. 稳健型决策
D. 风险型决策

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