A. Abdominal cavity
B. Pericardial cavity
C. Buccal cavity
D. Thoracic cavity
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The filament of an electric bulb is made of :
A Carbon B Iron C Tungsten D None of these
A. Abdominal cavity
B. Pericardial cavity
C. Buccal cavity
D. Thoracic cavity
A Carbon B Iron C Tungsten D None of these