题目

根据离子晶体的晶胞结构，判断下列离子晶体的化学式：（A表示阳离子，B表示阴离子）． 答案：【1】ABThis form of interaction is common to West African cultures, ________ it doesn't necessarily have anything at all to do with music．A.whichB.whereC.thatD.when