There has been no discernible improvement in the noise levels since lorries were banned.

Câu hỏi :

There has been no discernible improvement in the noise levels since lorries were banned.

A  recognizable    

B  obvious    

C  perceivable  

D insignificant

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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