2. 外语
  3. metal must be hammered and cooled rapidly to ______ internal stress caused by heating.

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

admin2012-11-22  84
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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大学英语四级

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