Jawaban :

1. They offer conveniences undreamed of a few years ago. With automatic time clocks and controls, oven and top burners can be set to turn on and turn off at specified times Heat controls set and regulate temperature. Ovens are equipped with automatic meat probes.
2. That signal when.
3. It is propely done. Broilers with infrared rays cook at twice the speed of conventional broilers.
4. They are large enough of broil or barbecue a roast or fowl. Picture windows in an oven give a clear view of what is happening inside.
5. It. Pilot lights on gas stoves are being replaced by an ignition system.
6. That lights a flame an instant after the gas is turned on. By 1963 new deveploments in porcelain, enamel, heat controls and burners had made possible the self-cleaning oven.
7. It first appeared in the electric stove and was adapted for gas ranges five years. The electronic range, originally made only for commercial use, became generally available in smaller models for home use in 1968.
8. It bakes potato in five minutes ad a steak in a minute and a half. The electronic range acts like a small radar station.
9. It send out microwaves.
10. That penetrate the food, setting up heat-producing activity.
11. That cooks.
12. It. During the cooking process, neither the cooking utensils nor the walls of the oven become hot.