农村面源污染主要的来源于农田施肥、农药、畜禽及水产养殖和（）。
A.水体污染物
B.农用薄膜
C.野生动物粪便
D.农村居民生活垃圾
参考答案：D
In the informal meeting the exporter learned that the importer was interested purchase rather than prepacked sets of 12.
A．in bulk B．in essence C．at random D．at ease
环境地质
