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یعد از is کدوم گزینه درست تره ؟
١ سال پیش
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The principal purpose of aviation medicine is ——
by people aboard an aircraft in flight.
١٠٠ %
to study the stress experienced
٢ پاسخ
٠ %
study the experienced stress
٠ %
to study stress experiencing
٠ %
study the stress experience
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٠
٣
١٩٤
٢ پاسخ
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