1990年是平年还是闰年 1990年是平年还是闰年，这一年共多少天
1990\u5e74\u662f\u5e73\u5e74\u8fd8\u662f\u95f0\u5e741990\u5e74\u662f\u5e73\u5e74\u3002
\u89e3\u7b54\u8fc7\u7a0b\u5982\u4e0b\uff1a
\uff081\uff09\u5224\u65ad\u4e00\u4e2a\u5e74\u4efd\u662f\u95f0\u5e74\u8fd8\u662f\u5e73\u5e74\uff0c\u4e00\u822c\u7684\u5e74\u4efd\u9700\u8981\u7528\u8fd9\u4e2a\u5e74\u4efd\u9664\u4ee54\uff0c\u5982\u679c\u8fd9\u4e2a\u5e74\u4efd\u80fd\u88ab4\u6574\u9664\uff0c\u5219\u8868\u660e\u8fd9\u4e2a\u5e74\u4efd\u662f\u95f0\u5e74\uff0c\u5168\u5e74366\u5929\u3002\u5982\u679c\u8fd9\u4e2a\u5e74\u4efd\u4e0d\u80fd\u88ab4\u6574\u9664\uff0c\u5219\u8868\u660e\u8fd9\u4e2a\u5e74\u4efd\u662f\u5e73\u5e74\uff0c\u5168\u5e74365\u5929\u3002
\uff082\uff091990\u5e74\u662f\u4e00\u4e2a\u4e00\u822c\u7684\u5e74\u4efd\uff0c1990\u00f74=497\u2026\u20262\u3002\u6240\u4ee51990\u5e74\u662f\u4e00\u4e2a\u5e73\u5e74\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u95f0\u5e74\u7684\u8ba1\u7b97\u65b9\u6cd5\uff1a
\u2460\u3001\u666e\u901a\u5e74\u80fd\u88ab4\u6574\u9664\u4e14\u4e0d\u80fd\u88ab100\u6574\u9664\u7684\u4e3a\u95f0\u5e74\u3002\uff08\u59822004\u5e74\u5c31\u662f\u95f0\u5e74\uff0c1900\u5e74\u4e0d\u662f\u95f0\u5e74\uff09
\u2461\u3001\u4e16\u7eaa\u5e74\u80fd\u88ab400\u6574\u9664\u7684\u662f\u95f0\u5e74\u3002\uff08\u59822000\u5e74\u662f\u95f0\u5e74\uff0c1900\u5e74\u4e0d\u662f\u95f0\u5e74\uff09
\u2462\u3001\u5bf9\u4e8e\u6570\u503c\u5f88\u5927\u7684\u5e74\u4efd\uff0c\u8fd9\u5e74\u5982\u679c\u80fd\u6574\u96643200\uff0c\u5e76\u4e14\u80fd\u6574\u9664172800\u5219\u662f\u95f0\u5e74\u3002\u5982172800\u5e74\u662f\u95f0\u5e74\uff0c86400\u5e74\u4e0d\u662f\u95f0\u5e74\uff08\u56e0\u4e3a\u867d\u7136\u80fd\u6574\u96643200\uff0c\u4f46\u4e0d\u80fd\u6574\u9664172800\uff09
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-1990\u5e74
\u5e73\u5e74 365\u5929 \u9664\u4ee54\u6709\u4f59\u6570 \u662f\u5e73\u5e74 \u521a\u597d\u6574\u9664\u662f\u95f0\u5e74\uff0c366\u5929 \u82e5\u5e74\u4efd\u7684\u5341\u4f4d\u548c\u4e2a\u4f4d\u90fd\u4e3a0\uff0c\u5c31\u9664\u4ee5400 \u80fd\u6574\u9664\u7684\u662f\u95f0\u5e74 \u4e0d\u80fd\u6574\u9664\u7684\u5e73\u5e74
1990年是平年因为不能被4整除。
---------------------------
谢谢采纳哦~
绛旓細1990骞存槸骞冲勾 鍏巻闂板勾鍒ゅ畾閬靛惊鐨勮寰嬩负: 鍥涘勾涓闂,鐧惧勾涓嶉棸,鍥涚櫨骞村啀闂.鍏巻闂板勾鐨勭畝鍗曡绠楁柟娉曪紙绗﹀悎浠ヤ笅鏉′欢涔嬩竴鐨勫勾浠藉嵆涓洪棸骞达紝鍙嶄箣鍒欐槸骞冲勾锛1.鑳借4鏁撮櫎鑰屼笉鑳借100鏁撮櫎銆2.鑳借100鏁撮櫎涔熻兘琚400鏁撮櫎銆
绛旓細1990骞存槸骞冲勾銆傝В绛旇繃绋嬪涓嬶細锛1锛夊垽鏂竴涓勾浠芥槸闂板勾杩樻槸骞冲勾锛屼竴鑸殑骞翠唤闇瑕佺敤杩欎釜骞翠唤闄や互4锛屽鏋滆繖涓勾浠借兘琚4鏁撮櫎锛屽垯琛ㄦ槑杩欎釜骞翠唤鏄棸骞达紝鍏ㄥ勾366澶┿傚鏋滆繖涓勾浠戒笉鑳借4鏁撮櫎锛屽垯琛ㄦ槑杩欎釜骞翠唤鏄钩骞达紝鍏ㄥ勾365澶┿傦紙2锛1990骞存槸涓涓竴鑸殑骞翠唤锛1990梅4=497鈥︹2銆傛墍浠1990骞存槸涓涓钩骞淬
绛旓細1990骞存槸骞冲勾 鍏巻闂板勾鍒ゅ畾閬靛惊鐨勮寰嬩负:鍥涘勾涓闂,鐧惧勾涓嶉棸,鍥涚櫨骞村啀闂.鍏巻闂板勾鐨勭畝鍗曡绠楁柟娉曪紙绗﹀悎浠ヤ笅鏉′欢涔嬩竴鐨勫勾浠藉嵆涓洪棸骞达紝鍙嶄箣鍒欐槸骞冲勾锛1.鑳借4鏁撮櫎鑰屼笉鑳借100鏁撮櫎銆2.鑳借100鏁撮櫎涔熻兘琚400鏁撮櫎銆
绛旓細1990/4=497浣2 鍥犱负闂板勾鍙互琚4鏁撮櫎 鎵浠1990涓嶆槸闂板勾
绛旓細鏄钩骞 锛365澶 銆傞櫎浠4鏈変綑鏁 鏄钩骞 鍒氬ソ鏁撮櫎鏄棸骞达紝366澶 鑻ュ勾浠界殑鍗佷綅鍜屼釜浣嶉兘涓0锛屽氨闄や互400 鑳芥暣闄ょ殑鏄棸骞 涓嶈兘鏁撮櫎鐨勫钩骞
绛旓細1990骞存槸骞冲勾銆傝绠楀钩娑﹀勾鐨勬柟娉曪細鐢ㄥ勾浠介櫎浠4锛岃兘鏁撮櫎(鏁寸櫨骞撮櫎澶)鐨勬槸闂板勾锛屽惁鍒欐槸骞冲勾锛屾暣鐧惧勾鏃惰鑳借400鏁撮櫎鎵嶆槸闂板勾銆1990梅4=497.5 涓嶈兘鏁撮櫎锛屾墍浠1990骞存槸骞冲勾銆
绛旓細鏄钩骞锛岃嚦浜庡浣曡绠楋紝濡傛灉骞翠唤鏄暣鐧剧殑璇濓紝鍍1900,2000绛夛紝閭ｅ氨鐢ㄥ畠闄や綑400锛屽鏋滆兘鏁撮櫎鑰屾病鏈変綑鏁帮紝閭ｈ瘉鏄庤繖骞村氨鏄闂板勾锛屽儚2000骞村氨鏄棸骞达紝1900骞村氨鏄钩骞达紝鍚岀悊锛屽儚1996,1990绛変笉鏄暣鐧剧殑骞翠唤鐨勮瘽锛岄偅灏辩敤瀹冩潵闄や綑4锛屽鏋滆兘鏁撮櫎锛屾嬁杩欏勾灏辨槸闂板勾浜嗭紝鍍1996骞达紝閭1990骞鑲畾鏄钩骞翠簡銆傚钩骞...
绛旓細1990骞存槸骞冲勾 鍥犱负涓嶈兘琚4鏁撮櫎銆--- 璋㈣阿閲囩撼鍝
绛旓細骞冲勾銆闂板勾鍒ゅ畾鏂规硶涓鸿兘琚400鏁撮櫎锛屾垨鑰呰兘琚4鏁撮櫎浣嗕笉鑳借100鏁撮櫎鐨勫勾浠斤紝1990涓嶈兘琚400鏁撮櫎锛屼篃涓嶈兘琚4鏁撮櫎锛屾墍浠鏄钩骞銆傞棸骞存槸鎸囬槼鍘嗗拰闃村巻涓湁闂版棩鐨勫勾浠斤紝鎴栭槾闃冲巻涓湁闂版湀鐨勫勾浠姐
绛旓細1990梅4=497鈥2锛屾墍浠1990骞存槸骞冲勾锛2000梅400=5锛屾墍浠2000骞存槸闂板勾锛庢晠绛旀涓猴細鈭氾紟
