He is in charge of the procurement of materials.他负责物资的采购。More and more , human food procurement came to have a dominant effect on their evolution.人类获取食物愈来愈显著地影响到人类的进化.It was squarely up to me to decide whether or not the...
The virulent strains had a polysaccharide capsule and formed smooth colonies on agar medium.有毒菌株具有多糖荚膜它在琼脂培养基上形成光滑的菌落....emotional strains beneath the surface...表面之下的情感纠结The principal methods of avoiding spoilage are the...