A. Boric oxide
B. In vacuum
C. For long period
D. Under pressure
A. Using contaminated gold foil
B. Poor finished preparation
C. Improper stepg of condenser point
D. Using small condenser point
A. Chromium
B. Selenium
C. Magnesium
D. Calcium
A. Transamination
B. Hydroxylation
C. Decarboxylation
D. Reduction
A. Auto regulation
B. Hormones
C. Parasympathetic impulses
D. Sympathetic impulse
A. Nicotinic cholinergic receptors
B. Glutamate receptors
C. GABA receptors
D. Glucocorticoid receptors
A. Carbolic acid spraying
B. Washing with soap and water
C. Formaldehyde fumigation
D. ETO gas