metal must be hammered and cooled rapidly to ______ internal stress caused by he

游客2023-07-18 69

问题 metal must be hammered and cooled rapidly to ______ internal stress caused by heating.

选项 A、retain
B、release
C、relieve
D、replace

答案 B

解析 relieve“缓解(痛苦、压力、紧张的情绪)；retain”保留，保持”：release“释放，发行，公布”。

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