Heat sensitive materials like certain pharmaceuticals and food stuffs

1.	Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.
A.	indirect tray
B.	spray
C.	freeze
D.	none of these
Answer» D. none of these

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Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.

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