北朝民歌多保存在()
A.《乐府诗集•梁鼓角横吹曲》
B.《乐府诗集•杂歌谣辞》
C.《乐府诗集•清商曲辞》
D.《乐府诗集•杂曲歌辞》
正确答案是A
At the level of primary education, the most important task is to（ ）children’s interest in nature.
