A, frying pans are generally made of iron, mainly because of its good thermal conductivity. This option is incorrect and meets the question.

B, frying mainly increases the internal energy of Artemisia selengensis and bacon through heat transfer, which is incorrect and in line with the meaning of the question;

C, steaming is to steam the glutinous rice through heat transfer and high-temperature steam liquefaction and heat release, which is correct and does not meet the meaning of the question;

D, chives and tofu can only be tasted when they are mixed, which shows that the molecules are doing random movements. This option is incorrect and accords with the meaning of the question.

ABD． is chosen.