The tests indicated that poultry feed in the country had also been contaminated, as samples of chicken and fish contained traces of antibiotics. The preceding statement proves that

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সঠিক উত্তর: tests are administered to figure out contamination। ব্যাখ্যা:

The tests indicated that poultry feed in the country had also been contaminated, as samples of chicken and fish contained traces of antibiotics. The preceding statement proves that

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