Which of the following were reasons that China closed their doors to the rest of the world? (Mark all that are true) Japanese pirates were attacking Chinese ships. Confucian values taught not to pursue anything abroad. Fighting the Mongols in the North was too expensive. Fleets of ships collected tributes from territories.

b. second continental congress

explanation:

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to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.