question: coronary heart disease:infectious disease
choices.label: A B C D
choices.text: panda:mammal apple:pear bacteria:virus carp:amphibian
explanation: "infectious disease" is a general term for a class of diseases, while "coronary heart disease" is not an "infectious disease", and "coronary heart disease" and "infectious disease" are different from each other. "panda" is a kind of "mammal". both "apple" and "pear" belong to fruit, but in addition to "apple" and "pear", there is also orange and so on. both "bacteria" and "virus" belong to microorganisms, but in addition to "bacteria" and "virus", there are algae and so on. "amphibian" is a collective name for a class of animals, while "carp" is not "amphibian", and "carp" and "amphibian" are different from each other.
relation: coronary heart disease infectious disease R2.8
relation: panda mammal R2.2
relation: apple pear R2.6
relation: bacteria virus R2.6
relation: carp amphibian R2.8