A drainage structure for a refrigerator equipped with an integrated product is provided. The selection and deselection of the gear stages is achieved with the aid of coupling units, in particular with the aid of engageable and disengageable sliding collars. In the case where the gate insulating film is formed, it is formed by sputtering so that a region having 0. The command device incorporating a microphone transmits a signal in response to the sound to the controller to verify the pairing of the command device incorporating a microphone to the controller such that the controller will only operate the medical device in response to a command issued near the sound generator. The system may also be configured to enable the voter with an option to connect the voter with a live poll worker, if desired by the voter, at any time when the voter is connected to the system. Second and third harmonic differences between the second-stage and third-stage local oscillators do not fall in the two mid-bands to avoid intermodulation interference.