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  3. The hesitation on the part of government regulators to implement stricter pollut

The hesitation on the part of government regulators to implement stricter pollut

游客2025-06-11  4
问题 The hesitation on the part of government regulators to implement stricter pollution rules is allowing thousands of tons ______ carbon dioxide to be dumped into the atmosphere.
选项 A、off
B、from
C、and
D、of
答案 D
解析 语法题。thousands of tons of为固定搭配，意为“成千上万的”，故选D。
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