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Q. 1å¹Žã¯æ£ç¢ºã«äœæ¥ã§ããïŒ
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Q. æïŒmonthïŒã¯ãªã30æ¥ã§èšç®ããŸããïŒ
A. å®éã®æã¯28ïœ31æ¥ãšæ§ã ã§ãããåäœå€æã®äŸ¿å®ã®ããã«å¹³åå€ã§ãã30æ¥ã䜿çšããŸãã
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