What are the taboos when using a microwave oven?

　　1. Avoid overtime heating；

　　2. Avoid using ordinary plastic containers and placing them in microwave ovens for heating.；

　　3. Avoid heating meat until it is half-cooked and then heating it in a microwave oven；

　　4. Avoid using metal utensils；

　　5. Avoid using closed containers；

　　6. Avoid fried foods；

　　7. Avoid placing the microwave oven in the bedroom；

　　8. Avoid working in front of the microwave oven for a long time.