Was Crocodile stronger at Marineford? Or was he holding back in Alabasta?

 During the Alabasta arc, Crocodile displayed a level of power that was initially considered overwhelming by the Straw Hat Pirates. He possessed the Logia-type Devil Fruit called the Suna Suna no Mi (Sand-Sand Fruit), which granted him the ability to control and transform into sand. He had a reputation as a Shichibukai and controlled the desert kingdom of Alabasta from the shadows. His strength was showcased through his battles with Luffy and others. At Marineford, Crocodile was present as part of the war that took place at Marine Headquarters. While he did participate in the battle, he didn't display the same level of dominance as some other powerful characters present. This has led fans to speculate that he might not have been as strong as initially portrayed in Alabasta. It's important to note that power scaling and character abilities can be subject to interpretation and development by the author. Oda often keeps details deliberately open-ended to keep the story intriguing.

China's economic influence grown in recent years?

 China's economic influence has grown significantly in recent years, primarily due to the country's rapid economic growth and increasing global trade. Over the past few decades, China has emerged as one of the world's largest economies and a major player in international trade. This has led to an increase in China's economic influence both regionally and globally. Some specific ways in which China's economic influence has grown include its increasing role in global trade, its growing investments in other countries, and its increasing presence in international organizations and forums.