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1. |
___________ crystals surrounded by ink vibrate, cautilizing a droplet to form and pass through a fine nozzle, a very small electric heater boil the ink to transfer it to the paper? |
A. | CuSO<sub>4</sub> |
B. | SiO<sub>2</sub> |
C. | Methamphetamine |
D. | Piezoelectric |
Answer» E. | |