Maoming has a history question, and the answer is D. Why?

Choose d, 1924, the Kuomintang convened a Sun Yat-sen conference, reorganized the Kuomintang and cooperated with the * * * production party. At this time, the cooperation between the two countries has just been established, not to mention revolutionary activities. The climax of the national revolution occurred in the May 30th tragedy in 25 years.

1924, the state-owned * * * cooperation has just been established, which is equivalent to the fact that the two companies have just reached the cooperation intention. As for the specific project operation, there is no immediate economic benefit, and so is the national revolutionary movement. At the beginning of cooperation, there was no major revolutionary event among the masses, and there was no praise in those four years, which was praise.