alleryমুখৰ পৰা পায়ুলৈকে সমগ্ৰ পৌষ্টিক নলীৰ দৈৰ্ঘ্য প্ৰায় কিমান?
Aপ্ৰায় দুই মিটাৰ
Bপ্ৰায় ন মিটাৰ
Cপ্ৰায় ৯০ মিটাৰ
Dপ্ৰায় ৯০ ছেমি
Answer & Solution
Correct answer: B. প্ৰায় ন মিটাৰ
এই নলীডাল মুখৰ পৰা পায়ুলৈকে প্ৰায় ন মিটাৰ দূৰত্বলৈ বিস্তৃত।
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