প্রশ্ন ও উত্তর
It is --- to try to destroy pests completely with chemical poisons, for as each new chemical pesticide is introduced, the insects gradually become to it.
English Sentence Completion 07 Oct, 2020
প্রশ্ন It is --- to try to destroy pests completely with chemical poisons, for as each new chemical pesticide is introduced, the insects gradually become to it.
সঠিক উত্তর
futile/resistant
মন্তব্য
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