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Careers / Heating, Air Conditioning, and Refrigeration Mechanics and Installers |
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Table of Contents |
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Interesting Fact |
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The Rx symbol used in pharmacology was originally as astrological sign for the planet Jupiter. Its use originated in the Middle Ages when doctors believed that planets influenced health. |
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Did you know... |
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You can purchase group licenses to MyPlan.com assessment tests for schools and businesses at steeply discounted prices. |
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