训练样本选取的图表法有哪些？

A.C.,

A．When he was teaching astronomy, Mr． Grable didn’t just teach students the names of the planets． He used it as a way to teach mythology．B．Mr． Grable introduced Greek and Roman mythology as a way of explaining．C．In an astronomy class, the students also learned about the literature of Greek and Roman mythology．D．Mr． Grable asked his students to do a research, write a report and make a presentation about the planet they chosE．