A blood sample obtained from the crime scene was sent to the laboratory to determine if it contained any drugs.
The _____ test was performed on the sample, which involved mixing it with a reagent and observing the result using the _____ technique.
choices for black 1 -
A. microcrystalline
B. color
C. spectroscopy
choices for blank 2 -
A. spectroscopy
B. chromatography
C. microscopy
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