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  3. In order to prevent stress from being set up in the metal, expansion joints are

In order to prevent stress from being set up in the metal, expansion joints are

游客2023-10-18  63
问题 In order to prevent stress from being set up in the metal, expansion joints are fitted which ______the stress by allowing the pipe to expand or contract freely.
选项 A、reclaim
B、reconcile
C、rectify
D、relieve
答案 D
解析 句意：为了防止压力作用于金属上，安装了可扩充的接缝，它们通过允许管道自由扩张或缩小来减轻压力。relieve减少，减轻。reclaim回收，利用。reconcile使和解。rectifly纠正，改正。
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