2. 外语
  3. Unemployment was at the ______ of the problem.

Unemployment was at the ______ of the problem.

admin2012-05-18  53
问题 Unemployment was at the ______ of the problem.
选项 A、bulb
B、seed
C、root
D、shoot
答案C
解析 固定搭配。be at the root of是…的根本(基础)，为一固定用法，原句意为，失业是出现这一问题的根本，故选C。
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大学英语六级

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