X
X、x (英文:ex;中文音译:艾克斯)是拉丁字母中的第24个字母。在北约音标字母中使用''X-Ray''来表示X。/ks/音在古代的西部希腊语中用“Χ”(Chi)字母来表示;而在古代的东部希腊语中用“Ξ”(Xi)字母来表示,“Χ”(Chi)字母只表示/x/。
结果,现代希腊语采用了东方式的写法,但西方式的写法却传入了意大利半岛的伊特鲁里亚。因此它在伊特鲁里亚语中表示/ks/,在拉丁语中表示/ks/和/gs/;相反的,源自东希腊语的斯拉夫字母却继承了东希腊语的读法,以致现时东方的阿塞拜疆语、乌兹别克语、鞑靼语、维吾尔语都把X来标记/x/音。不过,有学者表明拉丁字母的X并不等同于希腊字母Χ。葡萄牙语中x表示。
但是对于字母Ψ (Psi)、Χ (Chi, Khi) 和 Ξ (Xi) 是来源于希腊语还是闪族语则仍有争论。 維基百科提供
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出版 1937Shanghai : Da xin fa lü kuai ji shi wu suo, 1937.201 p. -
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303由 Wang, Shoufan### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1970Taipei : Taiwan Sheng lin ye shi yan suo, 1970.24 p. -
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出版 1934Shanghai : Xin sheng ming shu ju, Minguo 23 [1934]196 p. -
306Jin dai wen yi si chao近代文藝思潮出版 1932### CRL customization ### ?> ### Add publisher and desc details ### ?>Beiping : Ren wen shu dian, 1932.150 p.
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307由 Sou, Neiqing### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1956Taibei Shi : Zhonghua cong shu wei yuan hui, Min guo 45 [1956]10, 250 p. : ill. ; 19 cm. -
308Taibei : Zhonghua wen hua chu ban shi ye wei yuan hui,v. ; 19 cm.
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出版 1932Shanghai : Guang yi shu ju, Minguo 21 [1932]67, 66 pages. -
310出版 1954### CRL customization ### ?> ### Add publisher and desc details ### ?>Taibei Shi : Zhong hua wen hua chu ban shi ye wei yuan hui, Min guo 43 [1954]2 v. : ill., maps ; 19 cm.
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315Jing quan警犬出版 1941### CRL customization ### ?> ### Add publisher and desc details ### ?>Shanghai : Shi jie shu ju, Minguo 30 [1941]170 p.
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316由 Margouliès, G. (Georges)### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1925Paris, Geuthner, 1925.2 p. l., 97 p. 25 cm. -
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318Liang Song tian fu zhi du兩宋田賦制度由 Liu, Daoyuan, 1902-1996### CRL customization ### ?> ### Add publisher and desc details ### ?>
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