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问题 单项选择题

橡胶支座的抗剪老化试验是将试样置于老化箱内，在（）后取出。

A.80℃±2℃温度下经48h

B.70℃±2℃温度下经48h

C.80℃±2℃温度下经72h

D.70℃±2℃温度下经72h

答案

参考答案：D

单项选择题

场(厂)址比较的环境保护条件比较，不包括场(厂)址位置与( )的关系的比较。

A．城镇规划

B．风向

C．公众利益

D．大气污染
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单项选择题

Traditional network layer packet forwarding relies on the information provided by network layer （） protocols, or static routing, to make an independent （）decisions at each hop within the network. The forwarding （） is based solely on the destination （） IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost （） toward a destination, the packets toward the destination might take one or both of them, resulting in some degree of load sharing.

Traditional network layer packet forwarding relies on the information provided by network layer （） protocols, or static routing

A．rotating

B．routing

C．transmission

D．management
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