若∠A为三角形的内角,则sinA+cosA的取值范围是( )。
(﹣1,]
具有ADCC效应的细胞有()
A.中性粒细胞
B.单核细胞
C.巨噬细胞
D.NK细胞
E.嗜碱性粒细胞
()is the environmental process to collect sort transport bury or incinerate(烧弃)waste goods.
A.Environmental logistics
B.Waste material logistics
C.Returned logistics
D.Recycle