Which is an example of a one-party system? a country in which power is held by one party at a time a party that refuses to consider proposals of the other party a state in which one party wins two consecutive elections a dictatorship in which only ruling party is allowed to exist

A dictatorship is a one-party system because only the ruling party is allowed to exist. Sometimes a dictatorship allows other parties to exist, but the other parties are kept small and powerless.

Explanation:

The last one

the qing dynasty placed strict limits on foreign merchants' ability to trade in china.

the language dates from the contacts of arabian traders with the inhabitants of the east coast of africa over many centuries. under arab influence, swahili originated as a lingua franca used by several closely related bantu-speaking tribal groups.