Some of the phenomena that Xiaohong observed when she was cooking for her mother in the kitchen and

Updated on Kitchen 2024-08-25
1 answers
  1. Anonymous users2024-01-24

    A. Objects can be distinguished by timbre Knock raw watermelon and ripe watermelon respectively, the timbre they produce is different, and my mother knocks on the watermelon bought by Xiaohong a few times and says that it is not ripe - use timbre to distinguish raw and ripe watermelon This option is wrong

    B. The three-pin plug and three-pin socket for the rice cooker are to prevent electric shock accidents caused by leakage of the pot This option is correct

    C. The aroma of soybean milk can be smelled as a result of the diffusion caused by the irregular movement of molecules; That's right;

    D. When the dumplings just enter the water, the buoyancy is less than the gravity, the object sinks, in the process of boiling the dumplings, the volume of the dumplings slowly becomes larger, so that the buoyancy is greater than the gravity, and the dumplings float when the dumplings float on the water, the gravity is equal to the buoyancy Correct

    Therefore, BCD is chosen

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