কে মানের ঊর্ধ্বক্রমানুসারে সাজালে নিচের কোনটি শুদ্ধ উত্তর হবে?
A.
B. ০.৯,
C.
D. ০.৯,
সঠিক উত্তরঃ
D.
০.৯,
Explanation:
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