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题目内容双击单词支持查询和收藏哦～
After rising continuously over the summer, commodity prices fell, leaving analyst wondering whether the downward trend is a turning point or merely a _____ before demand picks up in the winter months.
- A.spike
- B.upsurge
- C.harbinger
- D.portent
- E.lull
- F.respite
E,F显示答案
以上解析由 考满分老师提供。
