TOEFL Listening: ETS-TOEFL听力机经 - 3FXX986T1DG69A65P$

The professor talks about using microwave ovens for superheating during the students' laboratory experiments. What two possible results of superheating does he mention? A. An increased flow of electrical current through the superheated liquid B. An acceleration of reaction between chemicals in the superheated liquid C. The decomposition of chemicals in the superheated liquid D. The creation of tiny scratches and dents on the interior surface of the container