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Using the following answer code, indicate which pressure relationship exists during the time in question.
-when the atrioventricular valve closes
Civilian Goods
Items produced for use by civilians, rather than for military purposes.
National Defense
The protective measures taken by a nation in order to defend itself against potential aggressors, including military forces and defense strategies.
Public Goods
Are goods that are non-excludable and non-rivalrous, meaning they can be consumed by one person without preventing the consumption of the good by another, and no one can be effectively excluded from using the good.
Government-Imposed Taxes
Levies authorized by the government on individuals, corporations, and goods.
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