There are highly sensitive and delicately balanced ecosystems in the forest.森林里有高度敏感、灵敏平衡的各种生态系统.Madagascar's ecosystems range from rainforest to semi-desert.马达加斯加生态系统类型多样,从雨林到半荒漠等不一而足。Temperate forest ecosystems oc...
The carbohydrate portion is made of gala ctose, glucosamine, fucose and sialic acid.碳水化合物部分由半乳糖,葡糖胺, 岩藻糖和唾液酸组成.Glucosamine ( from glucose ) is one of the commonest amino sugars.氨基葡萄糖 ( 来自葡萄糖 ) 是最常见的氨基糖之一.OBJECTIVE To stu...