This name defines us all.这个名字造就了我们.The range of incomes over which this happens defines the'poverty trap '.发生在这种情况的收入范围,称为 “ 贫困陷阱. ”Electron - beam lithography with a novel multilevel resist structure defines t...
食道的后端是嗉囊.At the posterior end of the oesophagus is the crop.结果表明, 嗉囊、腺胃和肌胃内食糜pH随 日龄逐渐增加,而小肠内食糜pH随 日龄变化不大.Chyme pH in crop, proventriculus and gizzard increase gradually with age....