27. 下列何者可見於鈣化上皮齒源瘤(calcifying epithelial odontogenic tumor)之組織病理?(A)澱粉樣物質(amyloid substance)(B)類牙本質(dentinoid substance)(C)角質素(keratin)(D)造釉細樣上皮(ameloblastic like-epithelium)