using optical sound (sound on film)
Are you lowering the key or going higher? if you are going lower its a flat if its higher its a double sharp (##)
<em>Answer: Frequency and severity risk rankings suggest five food safety hazards of greatest concern across all modes of transport: (1) lack of security; (2) improper holding practices for food products awaiting shipment or inspection; (3) improper temperature control; (4) cross-contamination; and (5) improper loading practices</em>
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