How fdr philosophy of gov. differ from coolige and hoover

According to the qianlong emperor, why was china not interested in importing anything else?

Why were chinese american immigrants frequently detained when trying to immigrate through angel island? the rules for immigration were stricter at this checkpoint due to health issues that were prevalent among asian populations at this time. the location of the island was difficult to reach, and ships to the mainland were often prevented from sailing more than once a week. immigration agents were notorious for asking immigrants confusing questions as a means of denying them entry. low wages caused a shortage of immigration officials, so many immigrants had to wait weeks or months before their applications were processed.

The source of wealth for the city-states of the east african coast was trade between the interior of africa and the far east. true false