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Academic Vocabulary for Science
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1. positive
adj. beginning, first; original
adj: certain, definite, without doubt: 2. indicating yes: 3. (of the results of a medical test) showing that a condition, disease, etc., exists: 4. indicating a ( ) sign for an electrical charge
identical in all essentials or respects 2.similar in position, purpose, form, etc. 3.associated in a working or other relationship
care or upkeep, as of machinery or property
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