民族乐器常分为几类?它是按什么标准划分的?
参考答案:
常分为吹管乐器、拉弦乐器、弹拨乐器、打击乐器四类,它是按演奏方法分类的。
I didn't write anything on the blackboard. I think Linda _____ it. [ ]
A. wrote
B. liked
C. does
D. writes
灭火方法要求不同的物资,不应存入同一库房。()