Unemployment was at the ______ of the problem.A、bulbB、seedC、rootD、shoot C固定搭

游客2023-09-05  25

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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