What did china agree to do once the treaty of nanjing was signed? check all that apply.
eliminate all tariffs on imported goods
create a “fair and reasonable” tariff
allow britain to trade at five ports
surrender the territory of hong kong
surrender the island of taiwan

The things that China Agree to do once the Treaty of Nanjing was signed are:  

-create a "fair and reasonable" tariff

-allow Britain to trade at five ports

-surrender the territory of Hong Kon

Explanation:

Treaty of Nanjing, (August 29, 1842) treaty that closed the first Opium War, the first of the complex treaties among China and outer imperialist powers. China paid the British a compensation, ceded the territory of Hong Kong, and granted to build a “fair and equitable” tariff.

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