Which of the Following Scenarios Exemplifies Spontaneous Recovery

question 431

Multiple Choice

Which of the following scenarios exemplifies spontaneous recovery?

• A) Alexis is a former cocaine user. Now that she no longer uses, her hands no longer shake, and her heart no longer pounds when she hears a car pull into her drive, like her dealer used to do in his car.
• B) Alexis uses cocaine. She no longer feels quite the same rush as she did when she fist started using.
• C) Alexis is a former cocaine user in recovery. After a relapse, though, her hands shake and her heart pounds when she hears a car pull into her drive, like her dealer used to do in his car.
• D) Alexis has relapsed on cocaine. She finds that she doesn't need quite as much of the drug to feel its effects as she did immediately before she stopped using the last time.

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Definitions:

Dedendum

The distance from the pitch circle of a gear to the bottom of the tooth groove.

Working Depth

Working depth pertains to the depth of engagement between two mating gears, specifically the depth to which a tooth enters into the gap between teeth on the opposing gear.

Whole Depth

The total depth of a gear tooth space, from the top of the tooth to the root, in mechanical engineering.

R/Min

Revolutions per minute, a unit of rotational speed indicating the number of full rotations completed in one minute by a mechanical component.