所有正规出版的普通图书版权页都有ISBN号,ISBN是international standard of book number 几个英文字母的缩写,即国际标准书号。它由10位数字组成,这10位数字由组号、出版者号、书名号、校验号这四部分组成,其间用“--”相连。 ISBN号是由10位数字组成,共分四段 ...
BEIJING, Sept. 12 (Xinhua) — Chinese President Xi Jinping on Thursday sent a congratulatory letter to the 2024 China International Fair for Trade in Services (CIFTIS).
BEIJING, Sept. 13 (Xinhua) -- China has unveiled an action plan to promote the opening up of certification and accreditation, and further deepen the reform of the industry, the country's top market ...