Answer:
c more highly skilled workers were needed.
Answer:
He visited the states of Southeast Asia, the coast of India, the Persian Gulf, the Red Sea, and the east coast of Africa. Zheng died in Calicut in the spring of 1433, and the fleet returned to China that summer.
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For decades North Korea<span> has been one of the world's most secretive societies. It is one of the few countries still under nominally </span>communist rule<span>. </span>North Korea's<span>nuclear ambitions have exacerbated its rigidly maintained isolation from the rest of the world.</span>