After months of negotiations, a u. s. president agrees to a nuclear arms limitation treaty with a foreign leader. when congress refuses to sign the treaty, the president uses executive agreements to implement some parts of the treaty without congress's approval. which of the president's major roles does the passage demonstrate?

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why did the chinese require the portuguese to pay for goods in gold and silver when trading?

choices

portuguese goods were less valuable than chinese goods.

the chinese already had a surplus of portuguese goods.

the imperial government wanted to stockpile gold and silver.

portuguese and chinese currencies were not exchangeable.

this a history q n in ancient time, theres no money exchange. so ans is portuguese and chinese currencies were not exchangeable.