Studying is the optimal qualification course for those who have no time to study. Let's pass the exam in a short period by utilizing the time between tasks with our online courses! We currently offer free introductory courses and method texts that explain efficient study methods using smartphones and PCs.

中国（郑州）国际氢能与燃料与电池产业博览会（河南氢能展）将于2025年4月14-16日在河南中原国际博览中心举办，展品覆盖氢能制、储、输运、加、用等全产业链，展览规模达到3万平米，吸引600+品牌和来自全球的4万位观众。

The China Maritime Exhibition is held annually in March alongside the China International Petroleum and Petrochemical Technology Equipment Exhibition (cippe). It features 2,000 exhibiting companies from 65 countries and regions, including 46 Fortune 500 companies and 18 international pavilions, attracting 150,000 professional visitors to an exhibition area of 120,000 square meters. It has become an annual Asian maritime engineering event covering the fields of marine engineering, marine oil and gas, and land oil and gas.

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