The right and left coronary arteries branch off which structure?

Cambodia is in the norther hemisphere

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A spiral search method would be used in:

In order to detect trace amounts of accelerant in a debris sample, investigators use:

Among the common characteristics of an arsonist is a person who:

A V-shaped burn near the point of origin for a house fire usually indicates:

Fire investigators categorize some fires as:

A fire in a restaurant has more than one point of origin. This probably indicates that the fire was: